SBA tips Flashcards
In an SBA what is ‘Dominant V (c or v) waves’ usually indicating?
Tricuspid Regurgitation
In an SBA what is ‘Dominant A waves’ usually indicating?
Tricuspid Stenosis or Pulmonary Hypertension
In an SBA what is ‘Prominent x descent + Prominent y descent’ usually indicating?
Constrictive Pericarditis
In an SBA what is ‘Prominent x descent + Absent y descent’ usually indicating?
Cardiac Tamponade
In an SBA on chest pain what is ‘sweating, nausea and vomiting’ is usually indicating?
Myocardial Infarction
In an SBA what is ‘72hours post MI’ usually indicating?
VSD
In an SBA what is ‘mid-diastolic click’ usually indicating?
Mitral Valve prolapse.
In an SBA what is ‘continous murmur through systole and diastole’ or ‘machinery murmur’ usually indicating?
Patent Ductus Arterious
In an SBA what would be linked with ‘inferior MI’
Bradycardia
In an SBA what is ‘diffuse apex beat’ usually indicating?
Left Ventricular Aneurysm
In an SBA what is ‘Ballooned apex’ usually indicating?
Takotsubo’s cardiomyopathy
What are the 6 A’s in Ankylosing Spondylitis?
AV node block Aortic regurgitation Apical Fibrosis AA amyloidosis Achilles Tendonitis Anterior Uveitis
What is neoplasm causes sclerotic bone lesions
Prostate Metastatic disease
What are the 5 main causes of massive splenomegaly?
Chronic Myeloid leukaemia Malaria Leishmaniasis Myelofibrosis Gaucher's dIsease (Lysosomal storage disease)
What are the three pathognomic signs of cushings?
Rapid weight gain (Striae)
Proximal myopathy
Increased ease of bruising
What are some causes of a high anion gap metabolic acidosis?
MUDPILES
Methanol Uraemia Diabetic ketoacidosis Phenytoin, paracetamol OD, Paraldehyde Iron, isoniazid, inborn errors of metabolism Lactic Acidosis Ethanol (Alcoholic ketoacidosis/lactic acidosis), Ethylene glycol Salicylates(Aspirin)
What is gradual swelling of the knee implying?
Meniscal Tear
What is rapid swelling of the knee implying?
ACL PCL tear
What comprises the modified Glasgow score for pancreatitis severity?
PANCREAS
PaO2 less than 8kPa AGE over 55 Neutrophilia WBC over 15 Calcium less than 2 Renal function urea over 15 Enzymes LDH over 600 AST over 200 Albumin less than 32 Sugar glucose over 10
Describe Dukes classification of colorectal cancer
Dukes A - Tumour confined to mucosa (90% 5yr-survival)
Dukes B - Tumour invading bowel wall (70%)
Dukes C - Lymph node metastases (45%)
Dukes D - Distant Metastases (6%-20%if resectable)
B and C can be further classified into 1 + 2 depending on if the tumour invades the wall partially or through it into the subserosal fat
In an SBA contradicting O2 sats and PaO2 is indicative of what cause?
Carbon monoxide poisoning
In an SBA the pathological change ‘alveolar hyaline membrane formation’ is indicative of what cause?
Acute Respiratory Distress syndrome
Sclerodermal renal crisis is associated with which autoantibody most commonly?
Anti-RNA polymerase III
In an SBA ‘Owl’s eye inclusion bodies’ on a histology report is indicative of what cause?
Cytomegalovirus
In an SBA an ‘ejection systolic murmur heard loudest over the scapula’ is indicative of what cause?
Coarctation of the aorta
In an SBA on renal biopsy ‘nodular gomerulosclerosis’ is indicative of what cause?
Diabetic nephropathy
What are the antibodies Anti-GD1a and anti-GD3 associated with?
Rare form of Guillian-barre acute motor axonal neuropathy
What is Anti-GM1 associated with?
Post campylobacter jejune infection e.g. In Guillian-barre syndrome
What is anti-GQ1B associated with?
Miller-Fisher syndrome a variant of Guillian-barre characterised by the triad of ataxia, opthalmoplegia, and areflexia
Which gene is affected in Familial Adenomatous Polypsosis?
APC
Which gene is affected in Heriditary Non-polyposis Colorectal Cancer?
MSH2
What are the signs of hypothyroidism?
BRADYCARDIC Reflexes relax slowly Ataxia (cerebellar) Dry thin hair/skin Yawning/drowsy/coma Cold hands, hypothermia Ascites +/- non-pitting oedema +/-pericardial/pleural effusion Round puffy face, double chin, obese Defeated demeanour Immobile +/- Ileus CCF also neuropathy, myopathy, goitre.
What is the CURB-65 score?
1 point for each: Confusion (AMTS less than or equal to 8) Urea ( over 7) RR over 30 BP systolic under 90mmhg or diastolic under 60mmHg 65 age
0-1 home management possible
2 hospital therapy
3 or more severe pneumonia ITU indicated
Associated Mortality 1 3 15 20 40 60
Describe Lights criteria in context of pleural effusion
Pleural Protein less than 25g/l = Transudate
Pleural Protein over 35g/L = exudate
Pleural protein 25-35g/L = Lights Criteria
Lights Criteria: 1 of the following indicates Exudate
- pleural fluid protein to Serum protein ratio over 0.5
- pleural LDH to Serum LDH ratio over 0.6
- pleural LDH is 2/3 over serum upper value of normal
- serum albumin-pleural albumin is less than 1.2g/dL
What are the causes of hypoglycaemia?
EXPLAIN
EXogenous drugs e.g. Insulin, hypoglycaemic Pituitary insuffiency Liver failure Addison's disease Insulinoma Non-pancreatic neoplasms
What are the red flag symptoms in dyspepsia?
ALARM Symptoms
Anaemia (iron-deficiency) Loss of weight Anorexia Rapid onset/progressive symptoms Malaena/haematemesis Swallowing difficulty
What is the ABCD2 Score?
Post TIA stroke predictor score
Age over 60 (1point) Blood pressure over 140/90 (1point) Clinical Features -unilateral weakness (2 points) -speech disturbance without weakness (1 point) Duration of symptoms -symptoms over 1hr (2 points) -symptoms 10-59mins (1 point) Diabetes (1 point)
4 or more require assessment by specialist within 24hr
And all other must be seen within 7 days
What are the signs of Delirum?
DELIRIUM
Disordered thinking Euphoric, fearful, depressed or angry Language impaired Illusions/delusions/hallucinations Reversal of sleep-awake cycle Inattention Unaware/disorientated Memory deficits
What are the side-effects of sodium valproate?
VALPROATE Appetite increase (weight gain) Liver failure (monitor LFTs) Pancreatitis Reversible hair loss Oedema Ataxia Teratogenicity, Tremor, Thrombocytopaenia Encephalopathy (hyperammonaemia)
What are the features of cerebellar syndrome?
DASHING
Dysdiadochokinesis and Demetria (past-pointing) Ataxia Slurred Stoccato speech Hypotonia Intention tremor Nystagmus Gait abnormality (wide based)
What are the causes of mononeuritis multiplex?
WARDS PLC
Wegners (Granulmatosis with polyangitis) AIDs/Amyloidosis Rheumatoid Diabetes Sarcoidosis
Polyarteritis nodosa
Leprosy
Carcinomatosis
What are the causes of carpal tunnel syndrome?
MEDIAN TRAPS
Myxoedema (hypothyroidism) Enforced flexion (e.g. Colles' splint) Diabetic neuropathy Idiopathic Acromegaly Neoplasms e.g. Myeloma
Tumours benign e.g. Lipoma, neurofibromata Rheumatoid arthritis Amyloidosis Pregnancy/premenstrual oedema Sarcoidosis
What are the X-ray features of osteoarthritis?
Loss of joint space
Osteophytes
Subarticular sclerosis
Subchondral cysts
What are the X-ray features of RA?
Loss of joint space
Osteopaenia (juxta-articulate)
Soft-tissue swelling
Erosions
What are the features of limited cutaneous systemic sclerosis?
CREST syndrome
Calcinosis Raynauds Esophageal and gut dysmotility Sclerodactyly Telangiectasia
What are the diagnostic criteria for melanoma?
ABCDE
Asymmetry Border - irregular Colour - non-uniform Diameter over 7mm Elevation, evolving
What are the causes of acute pancreatitis?
GET SMASHED
Gallstones Ethanol Trauma Steroids Mumps Autoimmune (PAN) Scorpion venom Hypertriglyceridaemia, hypothermia, hypercalcaemia ERCP Drugs
What are the symptoms of acute limb ischaemia?
Pale Pulseless Painful Perishingly cold Paraesthetic Paralysed
What are the features of hypocalcaemia?
SPASMODIC
Spasms carpopedal (trousseau’s sign)
Perioral paraesthesia
Anxious/irritable/irrational
Seizures
Muscle tone increased in smooth muscle hence colic wheeze and dysphagia
Orientation impaired and confusion
Dermatatitis
Impetigo Herpetiformis (hypocalcaemia and pustules in pregnancy)
Chovsteks sigg, choreoathetosis, cataract, cardiomyopathy ((long QT)
What are the risk factors for osteoporosis?
SHATTERED
Steroid use
Hyperthyroidism, hyperparathyroidism, hypercalciuria
Alcohol and tobacco use
Thin BMI under 22
Testestorone low e.g. Antiandrogen in prostate cancer
Early menopause
Renal or liver failure
Erosive/inflammatory bone disease (myeloma/RA)
Dietary calcium low, malabsorption, type 1 diabetes.
What are the causes of upper lobe fibrosis?
Berylliosis, siliocosis (pneuoconiosis) Radiation Extrinsic allergic alveolitis Ankylosing spondylitis Sarcoidosis Tuberculosis
What are the causes of lower lobe fibrosis?
RA/SLE connective tissues disease
Asbestosis
Idiopathic
Drugs e.g. Amiodarone, nitrofuratoin, bleomycin, methotrexate
What are the histological features of asthma?
Curschmann’s spirals (whirls of shed respiratory epithelium that form within mucous plugs seen in sputum of patients with asthma)
Charcot-Leyden crystals granules produced by eosinophils.
In an SBA histoligical feature ‘red and grey hepatisation’ is indicative of what cause?
Pneumonia
Which drugs are contraindicated in Raynaud’s?
Beta-blockers
What are the features of Multiple Endocrine Neoplasia type 1?
3 P’s Parathyroid, Pituitary, Pancreas (e.g. Insulinoma, gastrinoma) most common presentation is Hypercalcaemia
What are the features of Multiple Endocrine Neoplasia type 2a?
Medullary Thyroid Cancer
2 P’s Parathyroid, Phaemochromocytoma
What are the features of Multiple Endocrine Neoplasia type 2b?
Medullary thyroid cancer
1 P phaeochromocytoma
Marfinoid body habitus
Neuromas
What are some causes of dupuytren’s contracture?
Manual labour
Phenytoin treatment
Alcoholic liver disease
Trauma to hand
Describe the salter Harris classification of physical fractures.
SALTER
Type 1 - S - Straight across Type 2 - A - Above Type 3 - L - Lower or beLow Type 4 - T - Two or Through Type 5 - ER - ERasure of the growth plate or cRush
What are the causes of Dysphagia?
Mechanical (Solids before liquids):
- Malignant stricture e.g. Oesophageal, gastric, pharyngeal cancer
- Benign stricture e.g. Oesophageal web, peptic stricture
- extrinsic pressure e.g. Lung cancer, mediastinal lymph nodes, retrosternal gotire, aortic aneurysm, left atrial enlargement
- pharyngeal pouch
Motility (Solids and liquids):
- achalasia
- diffuse oesophageal spasm
- systemic sclerosis
- neurological e.g. Bulbar/pseudobulbar palsy, wilson’s Parkinson’s, syringobulbia, Chagas’ disease, myasthenia gravis
What is the most likely finding on echocardiogram in a patient with HOCM?
Asymmetric septal enlargement.
Which antibodies are associated with Autoimmune Hepatitis type 1?
Anti-smooth muscle
Which autoantibodies are most associated with Autoimmune Hepatitis type 2?
Anti Liver/Kidney Microsomal type I (Anti-LKM1)
Which autoantibodies are most associated with polymyositis?
Anti-Jo1
Which autoantibodies are most commonly associated with Primary Biliary Cirrhosis?
Anti-mitochondrial
In an SBA histology findings ‘multiple areas of cystic degeneration, fibrous stroma, numerous giant cell’ is indicative of which cause?
Describes Brown tumour aka osteitis fibrosa Cystic a rare but well-recognised complication of longstanding primary hyperparathyroidism.
In an SBA histological findings ‘basophilic intracellular vacuoles’ on muscle biopsy is indicative of what cause?
Inclusion body myositis
What are the paraneoplastic associations of Squamous cell lung carcinoma?
PTH
What are the paraneoplastic associations of small cell lung carcinoma?
ACTH, LEMS, SIADH
In an SBA ‘String of beads’ appearance on CT angiogram is indicative of what cause?
Fibromuscular Dysplasia
Which leads and coronary artery correspond to the anterolateral anatomical location?
I, aVL, V4-V6
Left main stem
Which leads and coronary artery correspond to the anteroseptal anatomical location?
V1-V4
Left anterior descending
Which leads and coronary artery correspond to the inferior anatomical location
II,III, aVF
Right coronary
Which leads and coronary artery correspond to the lateral anatomical location?
I, aVL +/- V5-V6
Left circumflex.
Which leads and coronary artery correspond to the posterior anatomical location?
Tall R waves in V1 + V2 + horizontal ST depression
Usually left circumflex but can be right coronary.
In an SBA ‘non-caseating granuloma’ on lung biopsy is indicative of which cause?
Sarcoidosis
In an SBA ‘panacinar emphysema’ on lung biopsy is indicative of which cause?
Alpha-1 antitrypsin deficiency.
What are the histological findings in Lewy body dementia?
Cytoplasmic aggregations of alpha-synuclein
What histological findings are associated with MND?
Cytoplasmic TDP-43 is associated with hereditary and non-heriditary motor neuron disease
Cytoplasmic SOD1 is asscoatied with hereditary forms of motor neuron disease.
What histological findings are associated with Alzheimer’s disease?
Aggregation of cytoplasmic tau protein and extra cellular beta-Amyloid plaques.
What are the classical features in Normal Pressure Hydrocephalus?
Triad of:
Gait disturbance
Urinary Incontinence
Dementia
What are the symptoms of lithium toxicity?
CARD CASH
Collapse Anorexia Renal failure D+V Coarse tremor Ataxia (Cerebellar signs) Sleepy/Drowsiness Hypokalaemia
What are the differentials for anterior mediastinal mass?
5 T’s
Thymus Teratoma Thoracic Aortic Anuerysm Thyroid Terrible Lymphadenopathy
In an SBA ‘mozzarella and tomato’ appearance of fundoscopy is indicative of which cause?
CMV Retinitis
What are the major causes of high-output heart failure?
BS TAPS
Beriberi (Vitamin B1/Thiamine deficiency) Severe chronic anaemia Thyrotoxicosis AV fistula and AV malformation Paget's disease Septicaemia
In an SBA ‘magenta-coloured acid-schiff positive macrophages’ is indicative of what cause?
Whipple’s disease
What are the main causes of dilated cardiomyopathy?
Vascular e.g. HTN
Inflammatory/Infectious e.g. Post-myocarditis, Chagas’ disease
Metabolic: Beriberi (Vitamin B1 defiency), thyrotoxicosis
Inherited/idiopathic e.g. Muscular dystrophy, Haemochromatosis
Drugs: Alcohol Doxorubicin
What are some causes of SIADH?
Vascular: Stroke, SAH
Inflammatory/infectious: Meningoencephalitis, Abscess, TB, pneumonia, aspergillosis, HIV
Trauma: Head injury, neurosurgery, Abdominal surgery
Autoimmune: SLE, GBS
Metabolic: hypothyroidism
Inherited: Acute intermittent porphyria
Neoplastic e.g. Lung small cell, pancreas, prostate, thymus, lymphoma
Drugs e.g. Sulfonylureas, SSRIs, tricyclics, carbamazepine, vincristine, cyclophosphamide.
What are the post-operative complications of surgery?
Can be categorised into general and specific.
General:
- from anaesthesia e.g. Respiratory depression, atelectasis, anaphylaxis, difficult intubation, aspiration
- from surgery in general e.g. Wound infection, haemorrhage, neurovascular damage, DVT/PE, cardiac compromise
Specific to the procedure: e.g. Failure, local nerves, regional pain
What are the causes of nephrogenic diabetes inspidus?
PC DIM
Post-obstructive Uropathy CKD Drugs e.g. Lithium Demeclocycline Inherited e.g. AVPR2 mutation Metabolic e.g. Hypokalaemia, hypercalcaemia
What are the causes of cranial diabetes insipidus?
Vascular e.g. Intracranial Haemorrhage
Infection/Inflammatory e.g. Sarcoidosis, histiocytosis, Meningoencephalitis
Trauma e.g. Hypophysectomy or neurosurgery
Autoimmune e.g. Autoimmune hypophysitis
Metabolic e.g. Thyroiditis
Idiopathic/inherited e.g. Idiopathic, Defects in ADH gene (DIDMOAD aka wolframs)
Neoplastic e.g. Craniopharyngioma, mets, pituitary tumour
What are the complications of stomas?
Early:
- Haemorrhage
- stoma ischaemia (progresses to dusky grey to black)
- high output (can lead to hypokalaemia consider loperamide +/- codeine to thicken output)
- Obstruction secondary to adhesions
- Stoma retraction
Delayed:
- Obstruction
- dermatitis
- stoma prolapse
- stomal intusseception
- stenosis
- parastomal hernia
- fistulae
- psychological problems.
What are the four clinical patterns of Motor neuron disease?
Amyotrophic lateral sclerosis
Progressive bulbar palsy
Progressive muscular atrophy
Primary lateral sclerosis
What are the features and causes of IIIrd CN palsy?
Features: Ptosis, dilated pupil, eye down and out
Causes:
- Medical (pupil sparing) e.g. Diabetes, HTN, GCA, Syphilis, Idiopathic
- Surgical (early pupil involvement) e.g. Posterior communicating artery aneurysm, raised ICP, tumours.
What are the features and causes of a spastic hemiparesis?
Features: Unilateral increased tone, reduced power, brisk reflexes, upgoing plantar.
Causes: Stroke, SOL, MS.
What are the features and causes of a IVth CN palsy?
Features: Unilateral Abducted eye inability to adduct, diplopia on look down and in (noticed on descending stairs)
Causes:
-Trauma
What are the features and causes of a sensory-motor peripheral neuropathy?
Features: Normal tone, reduced power bilaterally distal more than proximal, reduced reflexes, reduced sensation in length-dependent distribution
Causes: ABCDE
- Alochol
- B12/Folate deficiency
- CKD
- Diabetes
- Everything else e.g. Vasculitis, HIV
Describe the features and causes of cerebellar syndrome?
Features: DANISH
- Dysdiadochokinesis
- Ataxia wide based gait
- Nystagmus
- Intention tremor with past pointing
- slurred stoccato speech
- Hypotonia
Causes: PASTRIES
- Posterior fossa tumour
- Alcohol
- Sclerosis (Multiple)
- Trauma
- Rare e.g. Lithium
- Inherited e.g. Friedrich’s ataxia
- Epilepsy medications e.g. Phenytoin, carbamazepine
- Stroke
What are the features and causes of a motor peripheral neuropathy?
Features: Normal tone, reduced power bilaterally distal more than proximal, reduced reflexes, bilateral foot drop/wrist drop.
Causes:
- Guillian-Barre
- Chronic Inflammatory Demyelinating Polyneuropathy
- Lead-poisoning
- Charcot-Marie-Tooth
Describe the features and causes of lateral medullary syndrome?
Features: Unilateral cerebellar syndrome, reduce pain sensation, Horner’s , contralateral limb sensory loss.
Causes: Stroke, Harmorrhage
What are the features and causes of a spastic paraparesis?
Features: Increased tone bilaterally, reduced power bilaterally, brisk reflexes.
Causes:
- Demyelination e.g. MS
- Cord Compression: Trauma, tumour
- Parasagittal meningioma
- Tropical spastic paraparesis
- Transverse myelitis e.g. HIV
- Syringomyelia
- Hereditary spastic paraplegia
- Osteoarthritis of the cervical spine
What are the features and causes of a UMN 7th CN palsy?
Features: Unilateral facial droop with preserved facial markings, unilateral weakness, normal sensation, normal hearing.
Causes: Stroke, Haemorrhage, MS
What are the features and causes of Parkinsonism?
Features: Increased tone bilaterally with evidence of synkinesis. Asymmetrical resting tremor made worse with distraction. Bradykinesia, festinating gait with reduced arm swing.
Causes: Idiopathic Parkinson's Parkinson's plus Drugs Vascular Parkinson's
What are the features and causes of a VIth CN palsy?
Features: Unilateral adducted unable to abduct eye.
Causes: Stroke, Raised ICP, MS
What are the features and causes of a Vth, VIIth, VIIIth CN palsy?
Features: unilateral sided facial droop with preserved forehead markings, unilateral sided facial weakness, reduced facial pain sensation, reduced hearing
Causes: Cerebellopontine angle tumour e.g. Acoustic neuroma
Stroke, haemorrhage.
What are the causes of a mixed UMN and LMN lesion?
Fred’s Tabby Cat Seeks Mice
Friedrich's Atacia Tabes Dorsalis Cervical spondylosis Subacute degeneration of the cord MND
What are the features and causes of a LMN VIIth CN palsy?
Features: Unilateral facial drop with reduced forehead markings, unilateral facial weakness, normal sensation and hearing.
Causes:
- Bells Palsy
- Parotid neoplasm
- Infection VZV/Lyme
- Guilliam Barre.
What are some causes of an acute single episode headache?
- With Meningism e.g. meningitis, encephalitis, SAH
- Head injury
- Venous sinus thrombosis
- sinusitis
- tropical illness
- low pressure headache
- acute glaucoma
What are the causes of recurrent acute headaches?
- Migraine
- Cluster headaches
- Trigeminal neuralgia
- Recurrent (Mollarets) Meningtitis
What are some causes of chronic headache?
- tension headache
- raised ICP
- Medication-overuse headache
What are some causes of seizures?
Vascular e.g. AV Malformation, stroke
Infection/Inflammatory e.g. Cortical Scarring, Sarcoidosis, PAN
Trauma e.g. Haemorrhage.
Autoimmune e.g. SLE, Autoimmune encephalitis
Metabolic e.g. Hypoxia, Hypo/Hypernatraemia, Hyper/Hypoglycaemia, Hypocalcaemia, Hyperuraemia.
Idiopathic/Inherited e.g. Idiopathic (60%), Pseudoseizures, Tuberous sclerosis
Neoplastic e.g. SOL, raised ICP
Drugs e.g. Alcohol/ BZD withdrawal
What are some causes of nystagmus?
Horizontal: maybe peripheral (vestibular) or Cental (Cerebellar) If it occurs more in eye abducting cause may be MS (?INO), also deafness and tinnitus may point to peripheral cause.
Vertical: Upbeat nystagmus, classically occur sin lesions of midbrain, and downbeat nystagmus occurs in foramen magnum lesion.
What are the features and causes of bulbar palsy?
Features: Flaccid, fasciculations tongue, jaw jerk absent or normal, speech is quiet or nasally, gag reflex is absent
Causes: MND, Syringobulbia, Guillain-Barre, poliomyelitis, central pontine myelinolysis, brainstem tumours, myasthenia gravis.
What are the features and causes of pseudobulbar palsy?
Features: Increased tone, slow tongue movements, increased jaw jerk, increased gag reflex, Donald Duck speech, pseudobulbar affect causing weeping unprovoked or sudden giggling
Causes: Bilateral CVAs of internal capsule, MS, MND, high brainstem tumours, head injury
What are the causes of lobar collapse?
Bronchiogenic tumour
Mucous plug
Foreign body
Hilar lymph nodes.
What are the Ottawa ankle rules?
X-ray patients if:
- unable to weight-bear immediately after and during examination
- tenderness over the posterior aspect of the distal 6cm of the lateral or medial malleolus
- tenderness over the navicular, calcaneum, or base of 5th metatarsal
Have lower threshold for young, elderly or intoxicated patients
What are the causes of CKD?
Causes:
- Diabetes (20%)
- hypertension or renovascular disease
- glomerulonephritis (commonly IgA nephropathy also SLE, Vasculitis)
- Unknown
- reflux nephropathy
- inherited disorders e.g. ADPKD, alports, Fabrys.
What features on fundoscopy would you expect to find in hypertensive retinopathy?
Hard Exudates
Cotton wool spots
Flame haemorrhages
Papilloedema
In an SBA ‘Fibrinoid necrosis’ is a histological trademark of what cause?
Malignant Hypertension
What are the causes or QT prolongation?
- Drugs e.g. Amiodarone, TCA’s, many antibiotics, fluconazole, erythromycin, metoclopramide, quinidine, haloperidol, droperidol, methadone, ondansetron, SSRI’s
- Genetic due to cardiac ion channel mutations e.g. Romano-ward
- myocardial disease e.g. MI, RF, Complete heart block, cardiomyopathy,
- Metabolic e.g. hypocalcaemia, hypokalaemia, hypomagnesaemia
What are the Beta-blockers used in Heart failure?
My Cardiac Blockers
Metoprolol
Carvedilol
Bisoprolol
In an SBA ‘HLA B27’ is indicative of what cause?
Seronegative Arthropathy
In an SBA ‘HLA B51’ is indicative of what cause?
Behcets
In an SBA ‘HLA DQ2/DQ8’ are indicative of what cause?
Coeliacs
In an SBA ‘HLA DR4/DR8’ is indicative of what cause?
T1DM
What are the diagnostic features of SLE?
MD SOAP BRAIN
Malar rash Discoid Rash Serositis - pleurisy, pericarditis Oral ulcer - usually painless Arthritis - nonerosive Photosensitivity Blood disorders e.g. Leukopenia, lymphopenia, thrombocytopenia, haemolytic anaemia Renal involvement ANA +ve Immune markers e.g. DsDNA Anti-smith Neurological disorder e.g. Seizures, or psychosis
Which autoantibody is associated with anti-phospholipid syndrome?
Anti-cardiolipin.
What are the causes of lymphadenopathy?
Reactive or infiltrative
Reactive:
- Infective e.g. Bacterial (pyogenic, TB, Brucella, syphillis), Viral (EBV, HIV, CMV, Hepatitis), Others Chagas’ toxoplasmsosis
- non-infective e.g. Sarcoidosis, amyloidosis, berylliosis, connective tissue disease (RA, SLE) dermatological e.g. Eczema, psoriasis, drugs (phenytoin)
Infiltrative:
- Benign: histiocytosis castlemans
- Malignant: lymphoma, leukaemia, metastatic spread.
What are the causes of clubbing?
Resp: Bronchiogenic carcinoma, emphysema, abscess, bronchiectasis, cystic fibrosis, fibrosis, mesothelioma, TB
GI: MILC, Malapbsorption e.g. Coeliacs, IBD, GI lymphoma, Cirrhosis
Cardiac: Cyanotic congenital heart disease, endocarditis, atrial myxoma, aneurysm, infected grafts
Rare: Thyroid acropachy, familial
What are the chief non-GI causes of vomiting?
ABCDEFGHI
AKI, addisons Brain Raised ICP Cardiac MI DKA Ears (labyrinthitis, menieres) Foreign substances (alcohol, drugs e.g. Opiates) Gravidity (hyperemesis gradivdarum) Hypercalcaemia/hyponatraemia Infection e.g. UTI, meningitis.
What are the causes of hepatomegaly?
Malignancy: Metastatic or primary (usually craggy irregular edge)
Hepatic congestion: Right heart failure, may be pulsatile in tricuspid regurgitation. Hepatic vein thrombosis (Budd-chiari syndrome)
Anatomical: Riedal’s lobe (normal varient), cyst
Infection: infective mononucleosis, hepatitis, malaria, schistosomiasis, amoebic abscess
Haematological: Leukaemia, lymphoma, myeloproliferative (myelofibrosis) sickle-cell, haemolytic anaemia
Others: Fatty liver, porphyria, amyloidosis, glycogen storage disease.
What are the causes of bilateral Hilar lymphadenopathy?
Sarcoidosis
Infection e.g. TB
Malignancy e.g. Lymphoma, carcinoma, mediastinal tumours
Organic dust disease e.g. Silicosis, berylliosis
Extrinsic allergic alevolitis
Histocytotosis
What are the cause of goitre?
Diffuse vs nodular
Diffuse: physiological, Graves, Hashimoto’s thyroiditis, subacute dequervains thyroiditis (painful)
Nodular: multinodular goitre, adenoma, carcinoma
What are the causes of gastritis?
Alcohol NSAIDs H.Pylori Hiatus hernia Atrophic gastritis Granulomas (sarcoid, crohns) CMV Zollinger-Ellison syndrome Menetriers disease
What are the causes of cirrhosis?
Chronic alcohol abuse
Chronic HBC or HCV
Haemochromatosis/ wilsons, alpha-antitrypsin deficiency
Hepatic vein thrombosis (budd-chiari)
Non-alcoholic steatohepatitis
Autoimmune: PBC, PSC, Autoimmune hepatitis
Drugs e.g. Amiodarone methyldopa, methotrexate
Which autoantibodies are associated with Autoimmune Hepatitis type 3?
Soluble liver antigen (SLA) or Liver-pancreas antigen (LPA)
What are the causes of bone pain?
Trauma/Fracture Myeloma and other primaries e.g. Sarcoma Secondaries e.g. Breast, lung, prostate Osteonecrosis Osteomyelitis Hydatid cyst Osteosclerosis e.g. From Hepatitis C Paget's disease Sickle cell anaemia Renal Osteodystrophy CREST syndrome, sjrogrens Hyperparathyroidism
What are the nerve roots supply the main muscle groups of the Upper limb?
Shoulder:
- Abduction = C5
- Adduction = C5-C7
Elbow:
- Flexion = C5,C6
- Extension = C7
Wrist:
- Flexion = C7 C8
- Extension = C7
Fingers:
- Flexion = C8
- Extension = C7
- Adduction = T1
What are the nerve roots supply the main muscle groups of the lower limb?
Hip:
- Flexion = L1,L2
- Extension = L5,S1
- Adduction = L2,L3
Knee:
- Flexion = L5,S1
- Extension = L3,L4
Ankle:
- Plantarflexion = S1, S2
- Dorsiflexion = L4
- Eversion = L5, S1
Big Toe:
-Extension = L5
What are the red flags for back pain?
Age less than 20 or over 55 Acute onset in elderly Constant or progressive pain Nocturnal pain Worse pain on being supine Fever, night sweats, weight loss History or malignancy Abdominal mass Thoracic back pain Morning stiffness Bilateral or alternating leg pain Neurological disturbance Sphincter disturbance Current or recent infection Immunosuppresion Leg calculation or exercise related leg weakness.
What are the causes of a right iliac fossa mass?
Appendix mass/abscess Caecal carcinoma Crohn's disease Pelvic mass Intussception TB mass Amoebic mass Actinomycosis Transplanted kidney Kidney malformation Tumour in an undescended testes
What are the causes of a pelvic mass?
Foetus
Fibroids
Bladder
Ovarian cysts
What are the causes of ascites?
Malignancy Infection e.g. TB CCF or pericarditis Nephrotic syndrome Hypothyroidism Pancreatitis Cirrhosis Budd-chiari
What are the causes of hepatosplenomegaly?
Infection e.g. Hepatitis, EBV Amyloidosis Malignancy Sickle-cell Leukaemia Leishmaniasis Paraproteinaemia CML Gaucher's syndrome Portal hypertension
What are the causes of splenomegaly with fever?
Hepatitis EBV Malaria TB CMV HIV Sarcoidosis Malignancy
What are the cause of splenomegaly with lymphadenopathy?
Glandular fever
Leukaemia/lymphoma
Sjrogren’s syndrome
What are the causes of splenomegaly with purpura?
Septicaemia, typhoid
DIC, Amyloid
Meningococcaemia
What are the causes of splenomegaly with arthritis?
Sjogren syndrome
RA, SLE
Infection e.g. Lyme
Vasculitis/ behcets
What are the causes of splenomegaly with ascites?
Carcinoma
Portal hypertension
P
What are the causes of splenomegaly with a murmur?
Infective endocarditis
Rheumatic fever
Hypereosiniphilia
Amyloid
What are the causes of splenomegaly with anaemia?
Sickle-cell Thalassaemia Leishmaniasis Leukaemia Pernicious anemia
What are the causes of splenomegaly with weight loss and CNS signs?
Cancer/ lymphoma
TB arsenic poisoning
Paraproteinaemia
What are the causes of rectal bleeding?
Diverticulitis Colorectal cancer Haemorrhoids Crohn's/UC Perianal disease Angiodysplasia Ischaemic colitis Variceal bleeds
What is they formula for calculated plasma osmalility?
2(Na + K) + Ur + Glu
What is the formula for creatinine clearance?
CrCL = F x (140-Age) x Weight/Creatinine
Where F = 1.04 if female and 1.23 in males
In an SBA ‘Subtotal villous atrophy and intraepithelial lymphocytes’ is indicative of what cause?
Coeliac disease
What is the management of Extended Spectrum Beta Lacatamase Bacterium?
Carbopenems or Colistin (Polymyxin antibiotic)
In an SBA ‘ Ground glass hepatocytes’ is indicative of what causes?
HBV
In an SBA ‘Smudge Cells’ are indicative of what cause?
CLL
In an SBA ‘Atypical lymphocytes’ is indicative of what cause?
EBV/Glandular fever
What is the management of patient found to be MRSA positive?
Nose swab +ve = mupirocin 2% in white soft paraffin TDS 5days
Skin swab +ve = chlorhexidine gluconate OD 5days
Active infection: Vancomycin, teicoplanin, linezolid
Isolation will be neccesary
What are some side-effects of common DMARDs?
- Methotrexate e.g. pneumonitis, oral ulcers, hepatotoxicity
- Sulfasalazine e.g. Rash, oligospermia, oral ulcers
- Hydroxychloroquine e.g. Irreversible retinopathy
- Leflunomide e.g. Teratogencity (in mailers and females) , oral ulcers, hypertension, hepatoxicity
What are the some side-effects of biological agents?
- Serious infection
- TB and hepatitis B Reactivation
- worsening Heart failure
- hypersensitivity
- blood disorders
What is triple therapy for H.pylori?
Omeprazole
Clarithromycin
Amoxicillin
What is the Rutherford classification of PAD?
Stage 0 - Asymptomatic
Stage 1 - Mild claudication more than 200m
Stage 2 - Moderate claudication less than 200m
Stage 3 - Severe Claudication less than 50m
Stage 4 - rest pain
Stage 5 - Ischaemic ulceration not exceeding ulcer of the digits of the foot
Stage 6 - severe ischaemic ulcers or frank gangrene.
What are the grades of hypertensive retinopathy?
Grade 1: Tortuous arteries with thick shiny walls (silver or copper wiring)
Grade 2: A-V nipping (narrowing where arteries cross veins)
Grade 3: Flame haemorrhages and cotton-wool spots
Grade 4: Papilloedema
What are the grades of diabetic retinopathy?
- Non-proliferate diabetic retinopathy e.g. Signs include micro aneurysms, blot haemorrhages, hard exudates (yellow patches), engorged tortuous veins, cotton wool spots, large blot haemorrhages (the late 3 are signs of significant ischaemia)
- preproliferative diabetic retinopathy e.g. Venous beading, venous loops, multiple deep round blot haemorrhages.
- proliferative diabetic retinopathy e.g. Fine new vessels appear on the optic disc, retina and can cause vitreous haemorrhage
- maculopathy e.g. Leakage of vessels close to macula cause oedema and can significantly threaten vision
What is the management of warfarin in the context of major bleeding?
Stop warfarin
Give IV Vitamin K 5mg
Prothrombin complex concentrate (if unavailable then FFP)
What is the management of warfarin in the context of INR over 8 and minor bleeding?
Stop Warfarin
IV Vitamin K 1-3mg
Repeat IV if INR still too high at 24hrs
Restart warfarin when INR less than 5
What is the management of warfarin in the context of INR over 8 and no bleeding?
Stop warfarin
Give Vitamin K 1-5mg PO using intravenous prep
Repeat dose of Vitamin K if INR still too high at 24hrs
Restart when INR less than 5
What is the management of warfarin in the context of INR 5-8 and minor bleeding?
Stop Warfarin
IV Vitamin K 1-3mg
Restart when INR less than 5
What is the management of warfarin when INR is 5-8 and no bleeding
Withhold 1-2 doses of warfarin
Reduce subsequent maintenance dose.
What are the causes of warm autoimmune haemolytic anaemia?
Idiopathic CLL Lymphoma SLE RA (unique) Drugs e.g. Methyldopa (unique)
What are the causes of cold autoimmune haemolytic anaemia?
Idiopathic CLL Lymphoma EBV (unique) Mycoplasma pneumoniae (unique) HIV (unique) SLE
Which conditions are most associated with Thyroid Peroxidase antibodies?
Hashimoto's Thyroiditis (90%) Graves Disease (75%)
Which conditions are most associated with Thyroglobulin antibodies?
Thyroid Cancer
Hashimoto’s Thyroiditis
Which condition are most associated with Thyroid stimulating hormone receptor antibodies?
Graves’ disease.
What are the boundaries of Hesselbach’s triangle?
Medial: Rectus Abdominus
Lateral: Inferior epigastric vessels
Inferior: Inguinal ligament
Hernias occurring within the triangle tend to be direct, and those outside indirect
What is the recommended antibiotic for exacerbations of chronic bronchitis?
Amoxicillin or Tetracycline or Clarithromycin
What is the recommended treatment for Uncomplicated Community Acquired Pneumonia?
Amoxicillin
Doxycycline or clarithomycin if pen-allergic
(add flucloxacillin is staphylococci is suspected e.g. Infleunza)
What is the recommended treatment for Pneumonia possibly caused by atypical pathogens?
Clarithromycin
What is the recommended treatment for Hospital Acquired Pneumonia?
Within 5 days of admission: Co-Amoxiclav or Cefuroxime
More than 5 days after admission: Piperacillin with tazobactam (Tazocin) OR a broad-spectrum cephalosporin e.g. Ceftazidime OR a quinolone e.g. Ciprofloxacin
What is the recommended treatment of Lower Urinary tract infection?
Trimethoprim or Nitrofurantoin
Alternatively Amoxicillin or Cephalosporin
What is the recommended treatment of Acute pyelonephritis?
Broad-spectrum cephalosporin e.g. Ceftazidime or Quinolone e.g. Ciprofloxacin
What is the recommended treatment of Acute prostatis?
Quinolone or Trimethoprim
What is the recommended management of Impetigo?
Topical Fusidic acid
Oral flucloxacillin or Erythromycin if wide spread.
What is the recommended treatment of cellulitis?
Flucloxacillin
Clarithromycin of Clindamycin if pen-allergic
What is the recommended treatment of Erysipelas?
Phenoxymethypenicillin
Erythromycin if pen-allergic
What is the recommended treatment of animal or human bite?
Co-Amoxiclav
Doxycycline + Metronidazole if pen-allergic
What is the recommended treatment of mastitis during breast-feeding?
Flucloxacillin
What is the recommended treatment of throat infections?
Phenoxymethylpenicillin
Erythromycin alone if pen-allergic
What is the recommended treatment of sinusitis?
Amoxicillin OR doxycycline OR erythromycin
What is the recommended treatment of otitis media?
Amoxicillin
Erythromycin if pen-allergic
What is the recommended treatment of otitis externa
Flucloxacillin
Erythromycin if pen-allergic
What is the recommended treatment for a periodontal abscess?
Amoxicillin
What is the recommended treatment for acute necrotising Gingivitis?
Metronidazole
What is the recommended treatment of Gonorrhoea?
Intramuscular Ceftriaxone and Oral azithromycin
What is the recommended treatment of Chlamydia?
Doxycycline or Azithromycin
What is the recommended treatment of pelvic inflammatory disease?
Oral Ofloxacin + Oral Metronidazole OR IM Ceftriaxone and oral doxycycline and oral metronidazole
What is the recommended treatment of syphilis?
Benzathine benzypenicilin OR doxycycline OR Erythromycin
What is the recommended treatment of Bacterial Vaginosis?
Oral or Topical Metronidazole OR topical Clindamycin
What is the recommended treatment for Clostridium Difficle?
First Episode: Metronidazole
Second or subsequent infection: Vancomycin
What is the recommended treatment of campylobacter enteritis?
Clarithromycin
What is the recommended treatment of salmonella?
Ciprofloxacin
What is the recommended management of Shigellosis?
Ciprofloxacin
What is are the characteristic side-effects of Amoxicillin?
Rash with infectious mononucleosis
What are the characteristic side-effects of Co-Amoxiclav?
Cholestatis
What are the characteristic side-effects of Flucloxaciilin
Cholestasis
What are the characteristic side effects of erythromycin?
GI upset
Prolongs QT interval
What are the characteristic side-effects of ciprofloxacin?
Lower seizure threshold
Tendonitis
What are the characteristic side-effects of Metronidazole?
Disulfiram-like reaction following alcohol ingestion.
What are the characteristic side-effects of doxycycline?
Photosensitivity
What are the characteristic side-effects of trimethoprim?
Rashes including photosensitivity
Pruritus
Suppression haematopoiesis
What are some important history questions to ask a patient with Chest pain?
- SOCRATES
- Shortness of breath, Palpitations, Orthopnoea, Paroxysmal nocturnal dyspnoea, Haemoptysis, Sputum production, Calf swelling/pain
- Nausea, fever, weight loss, pain, sweating
- VTE risk factors recent surgery, long haul flights, foreign travel, previous VTE, family history of clotting
In an SBA ‘Hill-Sachs lesion’ is indicative of what cause?
A posterolateral humeral head compression fracture typically secondary to recurrent Anterior shoulder dislocation, as the humeral head comes to rest against the anteroinferior part of the glenoid.
What are the approximate incubation periods for common causes of Gastroenteritis?
1-6hrs: Staph Aureus, Bacillus Cereus
12-48hrs: Salmonella, E.coli
48-72hrs: Shigella, campylobacter
Over 7days: Giardiasis, amoebiasis
What are some drugs that may exacerbate myasthenia gravis?
Penicillamine Quinidine, procainamide Beta-blockers Lithium Phenytoin Antibiotics e.g. Gentamicin, macrolides, quinolones, tetracyclines.
What are some causes of post-operative pyrexia?
Early e.g. 0-5days
- blood transfusion
- cellulitis
- UTI
- Physiological systemic reaction (usually within a day)
- Pulmonary atelectasis
Late e.g. Over 5 days
- VTE
- Pneumonia
- Wound infection
- Anastomotic leak
What are the causes of a white-out lesion with the trachea pulled toward the white out?
Pneumonectomy
Total lung collapse e.g. Endobronchial intubation
Pulmonary hypoplasia
What are the causes of a white-out lesion with a central trachea?
Consolidation
Pulmonary oedema (usually bilateral)
Mesothelioma
What are the causes of a white out lesion with the trachea pushed away from lesion?
Pleural effusion
Diaphragmatic hernia
Large thoracic mass.
What are the criteria for LTOT in COPD?
ABG PaO2 less than 7.3 on two occasions at least 3 weeks apart.
Or PaO2 7.3-8 and one of the following:
- secondary polycythaemia
- Nocturnal hypoxaemia
- Peripheral oedema
- Pulmonary hypertension
What are the side-effects of isotretinoin?
Teratogenicity Low mood Dry eyes and lips Nose bleeds (dry nose) Raised triglycerides Hair thinning
In an SBA ‘ c-myc gene transolcation’ is indicative of what cause?
Burkitt’s lymphoma
What is the most common inherited thrombophilia?
Factor V Leiden
What are the monitoring requirements of Statins?
LFTs at baseline, 3 months and 12 months
What are the monitoring requirements of ACE inhibitors?
U+E prior to treatment, after increasing dose and annually.
What are the monitoring requirements of Amiodarone?
TFT LFT U+E CXR prior to treatment
TFT LFT every 6 months
What are the monitoring requirements of Methotrexate?
FBC U+E and LFT before treatment, weekly until stabilised and 2-3 months there after
What are the monitoring parameters of Azathioprine?
FBC, LFT before treatment
FBC weekly for first 4 weeks
FBC and LFT every 4 months
What are the main monitoring parameters of Lithium?
TFT, U+E before treatment
Lithium levels weekly until stabilised then every 3 months
TFT, U+E every 6 months
What are the main monitoring parameters for Sodium Valproate?
LFT FBC before treatment and LFT periodically during first 6 months
What are the monitoring parameters of Glitazones?
LFT before treatment and ‘regularly’ during treatment
Which chromosome is typically affected in Neurofibromatosis type 1?
Chromosome 17
Which chromosome is typically affected in Neurofibromatosis type 2?
Chromosome 22
Which chromosome is typically affected in Von-hippel lindau?
Chromosome 3
Which chromosome is typically affected in tuberous sclerosis?
Chromosome 16
Which chromosome is typically affected in adult polycystic kidney disease type 1?
Chromosome 16
What are the main live vaccines?
MMR BOY V
Measles, Mumps, Rubella, BCG, Oral polio, Yellow fever, Varicella
What is the frequency of Fluid therapy in DKA?
1L NS over 1hr 1L NS over 2hr 1L NS over 2hr 1L NS over 4hr 1L NS over 4hr 1L NS over 6hr
+/- Potassium (over 5.5 nil, 3.5-5.5 20mmol, less than 3.5 40mmol)
What are the Acute Phase Proteins?
CRP Procalcitonin Ferritin Fibrinogen Alpha-1 Antitrypsin Caeruloplasmin Serum Amyloid A Serum Amyloid P component Haptoglobin Complement
Negative phase proteins include Albumin, Transferrin, Retinal/cortisol binding protein
What are the causes of Intravascular Haemolysis?
Mismatched blood transfusion G6PD deficiency Red cell fragmentation e.g. Heart valves, TTP, DIC, HUS Paroxysmal Nocturnal Haemoglobinuria Cold autoimmune haemolytic anaemia
What are the causes of Extravascular haemolysis?
- Haemoglobinopathies e.g. Sickle Cell, thalassaemia
- Hereditary spherocytosis
- Haemolytic disease of newborn
- Warm autoimmune haemolytic anaemia
What is the stereotypical history of E. coli Gastroenteritis?
Common amongst travellers
Watery stools
Abdominal cramps and nausea
What is the stereotypical history of Giardiasis?
Prolonged, non bloody diarrhoea
What is the stereotypical history of Cholera?
Profuse rice-water diarrhoea
Severe dehydration resulting in weight loss
Not common amongst travellers
What is the stereotypical history of Shigella?
Blood diarrhoea
Vomiting and abdominal pain
What is the stereotypical history of Staph Aureus gastroenteritis?
Severe vomiting
Short incubation period
What is the stereotypical history of Campylobacter Gastroenteritis?
A flu-like prodome is usually followed by crampy abdominal pains, fever, and diarrhoea which may be bloody, complications include Guillian-Barre syndrome
What is the stereotypical history of Bacillus Cereus Gastroenteritis?
Two types of illness are seen
- Vomiting within 6 hours, usually due to rice
- Diarrhoeal illness occuring after 6 hours.
What are the causes of a Canon A wave?
Complete Heart Block
Ventricular Tachycardia
What are the main molecular biology techniques?
SNOW DROP
South North West blotting
DNA, RNA, Protein
Also ELISA detects antibodies and antigens e.g. Initial HIV test
Western blotting is example of confirmatory HIV test.
What is the toxic metabolite of paracetamol?
N-Acetyl-B-benzoquinone imine it forms covalent bonds with cell proteins, denaturing them and leading to cell death.
Which is conjugated by Glutathione into non-toxic mercapturic acid.
N-acetyl Cysteine is a precursor of glutathione
Describe Gell and Coombs Type 1 Hypersensitivity reaction and gives some examples.
Type 1 - Anaphylactic
Mechanism - Antigen reacts with IgE bound to mast cells
Examples: Anaphylaxis, Asthma, Hay fever, Eczema
Describe Gell and Coombs type II hypersensitivity reaction and give some examples
Type II - Cell bound
Mechanism - IgG or IgM binds to antigen on cell surface.
Examples - autoimmune haemolytic anaemia, ITP, Goodpastures, pernicious anaemia, acute haemolytic transfusion reactions, rheumatic fever, pemphigus vulgaris, bullous pemphigoid
Describe Gell and Coombs Type III hypersensitivity reaction and give some examples
Type III - Immune complex
Mechanism - Free antigen and antibody (IgG, IgA) combine
Examples - serum sickness, SLE, Post-streptococcal glomerulonephritis, Extrinsic allergic alveolitis
Describe Gell and Coombs Type IV hypersensitivity reaction and give some examples.
Type IV - Delayed hypersensitivity
Mechanism - T-cell mediated
Examples - Tuberculosis, Tuberculin skin reaction, Graft vs host disease, allergic contact dermatitis, scabies, Extrinsic allergic alveolitis (chronic phase) Multiple sclerosis, Guillian-Barre syndrome.
Describe Gell and Coombs Type V hypersensitivity reaction and give some examples.
Type V
Mechanism - Antibodies that recognise and bind to the cell surface receptors, either stimulating or blocking ligand binding
Examples - Graves’ disease, Myasthenia Gravis
What are Gell and Coombs classifications of hypersensitivity?
Type I - Anaphylatic
Type II - Cell Bound
Type III - Immune Complex
Type IV - Delayed Hypersensitivity
Type V
Which condition is associated with HLA-A3?
Haemochromatosis
Which condition is associated with HLA-B5?
Behcet’s Disease
Which condition is associated with HLA-B27?
Ankylosing Spondylitis
Reiter’s syndrome
Acute anterior uveitis
Which condition is associated with HLA-DQ2/DQ8?
Coeliac disease
Which condition is associated with HLA-DR2?
Narcolepsy
Goodpasture’s syndrome
Which condition is associated with HLA-DR3?
Dermatitis herpetiformis
Sjögren’s syndrome
Primary billary cirrhosis
Which condition is associated with HLA-DR4?
T1DM
RA
What antibodies are responsible for bullous pemphigoid?
Antibodies against hemidesmosomal proteins BP180 and BP230
Which antibodies are involved in pemphigus vulgaris?
Antibodies against desmoglein-3 ( a Cadherin-type epithelial cell adhesion molecule)
What is the significance of C1q, C1rs, C2, C4 deficiency?
Classical pathway components, deficiency predisposes to immune complex disease e.g. SLE, Henoch-Schonlein Purpura
What is the significance of C3 defiency?
A complement defiency leading to recurrent bacterial infections.
What is the significance of C5 deficiency?
A complement deficiency that predisposes to Leiner disease, also causes recurrent diarrhoea, wasting and seborrhoeic dermatitis.
What is the significance of C5-9 deficiency?
A complement deficiency, the complement encodes the membrane attack complex (MAC) making patients particularly prone to Neisseria Meningitidis infection
What are the main causes of Gingival Hyperplasia?
Drugs causes e.g. Phenytoin, Ciclosporin, Calcium Channel blockers (especially nifedipine)
Other e.g. Acute myeloid leukaemia (Myelomonocytic and monocytic types)
What are the main Classifications of bacteria and some examples?
Gram Positive Cocci: Staph + Strep + Entero
Gram Negative Cocci: Neisseria meningitides, Neisseria gonorrhoea, Moraxella
Gram Positive Rods: ABCD L Actinomyces, Bacillus Anthracis, Clostridium, Diphtheria, Listeria Monocytogenes.
Remaining are Gram negative rods.
What are the causes of Renal Papillary Necrosis?
Causes (POSTCARDS):
- Pyelonephritis
- Obstruction
- Sickle Cell Disease
- Tuberculosis
- Cirrhosis
- Analgesic abuse
- Renal Vein Thrombosis
- Diabetes
- Systemic Vaculitidies
What is a drug cause of acquired haemophilia A?
Phenytoin
Whats the main difference between IgG and IgM?
IgG is a chronic antibody that allows immunity over time
IgM is an acute phase antibody
What type of genetic disorder is Hereditary hypophosphataemic rickets?
X-Linked Dominant