Schofield medicine SAQs Flashcards
2 later ECG changes post MI?
Pathological Q waves and inverted T waves
How long until you can drive post-MI?
Can’t drive for 4 weeks, no need to inform DVLA
Complications of coronary angiography?
Bleeding
Infx
MI
Stroke
Death
Symptoms apart from pain during episode of angina?
SOB
Sweating
Feeling faint/lightheaded
Blood tests for angina?
FBC for anaemia
TFTs for thyrotoxicosis
Glucose for diabetes
Investigations for angina?
ECG
ECHO
Coronary angiography
How does aspirin reduce the risk of coronary events?
Aspirin irreversibly binds to COX, preventing further production of TXA2, which then inhibits platelet aggregation.
Signs of acute pulmonary oedema?
Tachypnoea
Tachycardia
Raised JVP
Wheeze
Cyanosis
Fine lung crepitations
Drugs to treat pulmonary oedema?
Furosemide
GTN
Morphine
Oxygen
Give two ways to increase someone’s potassium medically?
Orally (e.g. sando-K)
IV (Add KCl to IV fluids)
Normal QRS interval?
<0.12s (<3 small squares)
ECG shows regular rhythm, rate 140bpm, broad QRS complex and occasional capture beat?
Ventricular tachycardia
What is a capture beat?
Normal QRS complex between VT complexes
Two drugs that may be used during V tacky?
Amiodarone
Lidocaine
Oxygen
Adrenaline
What system is used to classify the severity of heart failure?
New York Heart Association Classification
Symptoms of left ventricular failure?
Dyspnoea
Fatigue
Paroxysmal nocturnal dyspnoea
Orthopnoea
Wheeze
Cough
Pink, frothy sputum
Signs of heart failure on CXR?
Kerley B lines
Cardiomegaly
Pleural effusions
Alveolar/interstitial oedema in ‘bat wings’ distribution
How and where does furosemide act?
Competitively inhibits the Na-K-2Cl cotransporter in the thick ascending limb of the LoH, diminishing the osmotic gradient for water reabsorption.
Side effects of ACEi?
Dry cough
Hyperkalaemia
Renal impairment
Angioedema/urticaria
Hypotension
Signs that may be visible on fundoscopy of someone with hypertensive retinopathy?
Cotton wool spots
Flame haemorrhages
A-V nipping
Papilloedema
Complications of hypertension?
Heart failure
Stroke
IHD
CKD
Hypertensive retinopathy
Peripheral vascular disease
Mechanism of action of statins?
Inhibits HMG-CoA reductase, the rate-limiting step in cholesterol synthesis
Signs of hypercholesterolaemia?
Xanthelasma
Xanthoma
Corneal arcus
Causes of AF?
IHD
HTN
Hyperthyroidism
Heart failure
Endocarditis
Symptoms of AF?
SOB
Light-headed
Dizzy
Methods of cardioversion?
Electrical - DC cardioversion
Pharmacological - Amiodarone and flecainide
Long term meds in AF patients?
Beta-blocker
CCB
Digoxin
DOAC
Target INR on warfarin?
2-3
Complications of atrial fibrillation?
Stroke
TIA
Heart failure
Most common cause of infective endocarditis?
Staphylococcus aureus
If prosthetic valve - staphylococcus epidermis
Why do urine dip in infective endocarditis?
Microscopic haematuria
Infective endocarditis fundoscopy: boat-shaped retinal haemorrhage with a pale centre?
Roth spots
Criteria used to diagnose infective endocarditis?
Modified Duke criteria
1 major and 3 minor
OR
5 minor
Examination findings infective endocarditis?
New heart murmur
Splinter haemorrhages
Petechiae on the trunk, limbs, oral mucosa or conjunctiva
Janeway lesions (painless red flat macules on the palms of the hands and soles of the feet)
Osler’s nodes (tender red/purple nodules on the pads of the fingers and toes)
Roth spots
Splenomegaly (in longstanding disease)
Finger clubbing (in longstanding disease)
Pansystolic murmur heard loudest on inspiration?
Tricuspid regurgitation
How should blood cultures be taken for infective endocarditis?
3 sets, from 3 diff sites at 3 diff times
What increases the risk of infective endocarditis?
IVDU
Prosthetic valves
PDA
VSD
Mitral valve disease
Bicuspid aortic valve
What pattern on spirometry is seen in asthma?
Obstructive (FEV1/FVC <0.7)
How does salbutamol work?
SABA
Stimulates B2 receptors of resp tract, increases sympathetic activity and relaxes bronchial smooth muscle
Oxygen therapy for Type 2 respiratory failure (low O2, high CO2)
Controlled oxygen therapy via venturi mask as at risk of losing hypoxic drive
Management of acute infective exacerbation of COPD?
Abx
Steroids
Salbutamol/ipratropium NEB
Resp physiotherapy
CURB-65?
C - confusion
U - urea >7
R - RR >30
B - BP <90 systolic or <= 60 diastolic
65 - >65
Most common causes of community acquired pneumonia
Streptococcus pneumonia
Haemophilus influenzae
Staphylococcus aureus
Why may cases of TB be on the rise?
HIV/AIDs prevalence
Use of immunosuppressive drugs
Increased immigration from areas of high prevalence of TB
Poor socio-economic conditions and overcrowding
Why multi-drug therapy for TB?
To combat multidrug resistance
Causes of erythema nodosum?
Idiopathic
Crohns
TB
Ulcerative colitis
Sarcoidosis
Incidence of Cystic Fibrosis?
One in 2500 births
Organisms that colonise the lungs of those with cystic fibrosis?
Staphylococcus aureus
Haemophilus influenzae
Pseudomonas aeruginosa
Causes of bronchiectasis?
Idiopathic
Post-infective
Post-obstructive (foreign body, tumour)
Congenital (Young’s, Kartagener’s)
RA
Alpha-1-antitrypsin deficiency
Complications of bronchiectasis?
Pneumonia
Sepsis
Recurrent LRTIs
Resp failure
Cor pulmonale
Pneumothorax
Lung cancer commonly metastases sites?
Brain
bone
Liver
Lung
Adrenals
Causes of finger clubbing?
Idiopathic pulmonary fibrosis
Bronchial carcinoma
Mesothelioma
Bronchiectasis
Other than obesity give risk factors for OSA?
Acromegaly
Enlarged tonsils
Enlarged adenoids
Nasal polyps
Alcohol
What is cor pulmonale?
Right sided heart failure secondary to chronic pulmonary hypertension
ECG changes in cor pulmonale?
Right axis deviation
Inverted T waves in chest leads
P pulmonale
Dominant R wave in VI
Causes of bilateral hilarity lymphadenopathy?
Sarcoidosis
Lymphoma
Bronchial carcinoma
TB
Sarcoidosis biopsy?
Non-caseating granuloma
Extrapulmonary manifestations of sarcoidosis?
Erythema nodosum
Lymphadenopathy
Arthralgia
Anterior uveitis
Cardiomyopathy
Hepatosplenomegaly
Advice for patient before starting long-term steroids?
Do not stop taking steroids abruptly
Carry ‘steroid card’ at all times
Doses need to be increased during illness
Side effects of long-term steroids?
Adrenal suppression
Hyperglycaemia
Central obesity
Moon face
Skin thinning
Cataracts
Muscle wasting
Osteoporosis
Signs of pleural effusion on examination?
Reduced chest expansion on affected side
Dull percussion
Absent breath sounds
Reduced vocal resonance
Tracheal deviation away from effusion if large
Where to insert needle in pleural tap?
Above the rib to avoid the neuromuscular bundle which sit directly inferior each rib.
Causes of CKD?
Diabetes
Hypertension
Glomerulonephritis
Polycystic kidney disease
Signs of CKD on examination?
Peripheral oedema
Pallor
Purpura
Bruising
Evidence of excoriation
Basic principles of haemodialysis?
Blood and dialysis fluid flow either side of a semipermeable membrane, molecules diffuse down their concentration gradient.
Complications of peritoneal dialysis?
Bacterial peritonitis
Infx at catheter site
Weight gain (due to dextrose solution)
What sites does hydroxylation of Vitamin D take place?
Liver
Kidney
Causes of post-renal AKI
renal calculi
renal tumour
ureteric tumour
BPH
prostate cancer
Other than blood tests, investigations for AKI?
US KUB
Urinalysis
ABG
Life-threatening complications of AKI?
Pulmonary oedema
Hyperkalaemia
Haemorrhage
Indications for dialysis for patients with AKI?
Refractory pulmonary oedema
Refractory hyperkalaemia
Severe metabolic acidosis
Uraemic encephalopathy
Uraemic pericarditis
By what mechanism does rhabdomyolysis cause AKI?
Acute tubular necrosis
What would you see on urine microscopy with rhabdomyolysis
Muddy brown/ granular casts (due to myoglobinuria)
Why withhold metformin and lisinopril during AKI?
Metformin - risk of metabolic acidosis
Lisinopril - nephrotoxic
Hyperkalaemia ECG changes?
Tall tented T waves
Widening of QRS complex
Flat P waves
Prolonged PR interval
If suspected rapidly progressive glomerulonephritis what blood tests should be requested urgently?
ANCA, anti - GBM
What should be started immediately with rapidly progressive Glomerulonephritis?
steroids
Most common cause of nephrotic syndrome in kids and adults?
Kids - minimal change disease
Adults - membranous nephropathy
Complications of nephrotic syndrome?
Increased susceptibility to infections
Increased risk of thromboembolism
Hyperlipidaemia
Dietary advice for those with nephrotic syndrome?
Low salt diet
Normal protein diet
How to calculate serum osmolality?
Serum osmolality = 2(Na + K) + urea + glucose
Normal range = 275-295mOsm/kg
How to examine for someone’s volume status?
Postural blood pressures
Serial weights
Examine for peripheral oedema
Measure urine output
Where is ADH secreted?
Posterior pituitary
How to treat SIADH pharmacologically?
Tolvaptan
Risk factors for UTI?
Female
Pregnancy
Diabetes
Immunosuppressed
Sexual intercourse
Contraindications for renal biopsy?
Abnormal coagulation studies
Single functioning kidney
CKD with small kidneys
Complications of renal biopsy?
Macroscopic haematuria
Pain
Haematoma
Infection
Death
Histological finding in patient with IgA nephropathy?
Mesangial proliferation
IgA deposits
C3 deposits
Causes of purpuric rash?
Henoch-Schonlien purpura
Immune thrombocytopenic purpura
Thrombotic thrombocytopenic Purpura
DIC
Hand findings in RA?
Swan-neck deformity
Boutonnieres deformity
Z-shaped deformity of the thumb
Ulnar deviation of the fingers
X ray findings in RA
Loss of joint space
Juxta-articular osteopenia
Subluxation
Soft tissue swelling
Extra-articular features of RA?
Sjogren’s syndrome
Carpal tunnel syndrome
Pulmonary fibrosis
Lymphadenopathy
Raynaud’s phenomenon
RA with palpable spleen and neutropenia?
Felty’s syndrome
Causes of poly arthritis?
RA
Osteoarthritis
Psoriatic arthritis
SLE
Mechanism of NSAIDS
COX inhibition
Reduces prostaglandin synthesis
Reduces inflammation
How is methotrexate administered and how often in RA?
Orally/IM once a week - take with folic acid
Other than GP and rheumatologist - who else will be involved in RA patient’s care?
Rheumatology specialist nurse
Physiotherapist
Occupational therapist
Common precipitants to gout?
Starting bendroflumethiazide
High purine diet
Alcohol
Trauma
Infection
X ray findings in gout?
Normal joint space
Soft tissue swelling
Commonly affected joints in pseudo gout?
Knee
Hips
Wrist
Risk factors for pseudo gout?
Hypothyroidism
Hyperparathyroidism
Wilson’s disease
OA
Increasing age
Investigation for gout/pseudogout?
Polarised light microscopy of synovial fluid
Treatment options for OA?
Conservative (weight loss, exercise)
Physiotherapy
Topical NSAIDs
Intra-articular steroid injections
Joint replacement
Positive blood tests in antiphospolipid syndrome?
ANA and anti-cardiolipin antibodies
Skin effects of SLE
Malar rash
Photosensitive rash
Discoid rash
Features of anti phospholipid syndrome?
Recurrent miscarriages
Coagulation defects
Livedo reticularis
Thrombocytopenia
Drugs to treat anti phospholipid syndrome?
Aspirin
Clopidogrel
Heparin
Dermatomyositis autoantibodies?
Anti-Jo1
ANA
Anti-Mi2
RF
What is Raynaud’s phenomenon?
Peripheral digital Ischaemia due to vasospasm precipitated by cold or emotion.
Causes of Raynaud’s phenomenon?
Raynaud’s disease
SLE
RA
Dermatomyositis/polymyositis
B-blockers
Features of limited cutaneous scleroderma? (CREST)
Calcinosis
Raynaud’s phenomenon
Oesophageal dysfunction
Sclerodactyly (thick and tight skin over fingers/hands)
Telangiectasia
X ray findings in ankylosing spondylitis?
Calcification of intervertebral ligaments
Bamboo spine
Ank spond with ant. uveitis - what may you hear on heart and lungs?
Early diastolic murmur (Aortic regurgitation)
Fine inspiratory crepitations at apices
Forms of psoriasis?
Chronic plaque psoriasis
Flexural psoriasis
Guttate psoriasis
Commonly affected sites of skin lesions of chronic plaque psoriasis?
Extensor surface of arms
Extensor surface of legs
Scalp
Lower back
Some patients with psoriatic arthritis develop periarticular osteolysis and shortening of the bones. What is this form of psoriatic arthritis called?
Arthritis mutilans
Organisms that may trigger reactive arthritis?
Chlamydia
Campylobacter
Salmonella
Shigella
Name ANCA positive and ANCA negative small vessel vasculitis:
p-ANCA : eosinophilic granulomatosis with polyangitis (Churg-Strauss syndrome)
p-ANCA: Microscopic polyangitis
ANCA negative: Goodpasture’s, Henoch-Schonlein purpura
Large and medium vessel vasculitis?
Large - Takayasu arteritis, temporal arteritis
Medium - Kawasaki’s disease, polyarteritis nodosa
Systemic conditions in which vasculitis is a feature of the disease?
Infective endocarditis
RA
Behcet’s
SLE
IBD
Hep B & C
Dermatomyositis
What is mononeuritis multiplex?
Type of peripheral neuropathy
Used to describe inflammation or damage to >= 2 peripheral nerves
Causes of mononeuritis multiplex?
Granulomatosis with polyangiitis
HIV
RA
Diabetes
Sarcoidosis
Leprosy
Polyarteritis nodosa
What is acromegaly?
Hypersecretion of GH by a tumour in the ant pituitary gland
Signs and symptoms of acromegaly?
Macroglossia
Bitemporal hemianopia
Voice changes
Carpal tunnel syndrome
OSA
Frontal bossing
Increased blood pressure
Prognathism (jaw protrusion)
How does oral glucose tolerance test aid in acromegaly diagnosis?
Rapid increase in blood glucose should suppress GH secretion - this will not happen in acromegaly.
If acromegaly is confirmed, what other endo disorder do you screen for?
Diabetes mellitus as GH is anti-insulin leading to insulin resistance and eventually diabetes.
Main complication and cause of death in acromegaly patients?
Cardiovascular disease
Signs of hypothyroidism?
Fatigue
Weight gain
Cold intolerance
Dry/thinning hair
Bradycardia
Dry skin
Ataxia
Goitre
CTS
Loss of lateral 1/3rd of eyebrows
Causes of hypothyroidism
Amiodarone
Radiotherapy
Iodine deficiency
Autoimmune (Hashimoto’s)
Cancer
Hypopituitarism
What will FBC show in hypothyroidism?
Macrocytic anaemia
What anatomical structure represents the site at which the thyroid gland originated before embryological descent?
Foramen caecum
What is Grave’s disease
Autoimmune disease caused by TSH receptor antibodies
Sign’s specific to Grave’s disease
Pretibial myxoedema
Exophthalmos
Excessive thirst, polyuria, and weight loss - urine dip is negative for glucose.
Most likely diagnosis?
Diabetes insipidus
In diabetes insipidus describe the urine osmolality and plasma osmolality?
Urine osmolality will be low
Plasma osmolality will be high
How does water deprivation test used to diagnose diabetes insipidus?
Patient is starved of any fluid intake.
Normal response = concentrate urine and decrease urine output.
Diabetes insipidus = continued production of large vol of urine with low osmolality
How to treat cranial diabetes insipidus?
Desmopressin
Advice for patient and family to prevent hypoglycaemic episodes?
Regular glucose monitoring
Never miss a meal
Keep ‘emergency supply’ of glucose in pocket
Causes of hypoglycaemia in non-diabetic patients?
Liver failure
Addison’s
Insulin-secreting tumours
Alcohol binging
Pituitary insufficiency
Explain the OGTT?
Patient fasts overnight prior to test.
Drink containing 75g of glucose in 300ml water is given.
Blood glucose is measured before drink and then at 120 mins.
Diabetes = >11.1mmol/L at 2 hours
T2DM macrovascular and microvascular complications?
Macrovascular:
Cerebrovascular disease
MI
IHD
Peripheral vascular disease
Microvascular:
nephropathy
neuropathy
retinopathy
Confirm DKA bedside test?
Urine dip - presence of ketonuria
Pathophysiology of DKA?
Insulin deficiency = more glucose production in the liver and lipolysis.
Fatty acids get broken down to form ketone bodies = metabolic acidosis.
Investigations for Addison’s?
U&Es
SynACTHen test
What would you expect serum sodium and potassium to be in Addison’s?
Hyponatraemia
Hyperkalaemia
Advice for patients starting on steroid therapy for Addison’s?
Carry steroid card
Medic alert bracelet
Know how to alter dosage in illness
Signs and symptoms of prolactinoma in women?
Amenorrhea
Galactorrhea
Decreased libido
Subfertility
Headache
Visual field defect
Drug/apart from surgery treatment for prolactinoma?
Dopamine agonist:
Cabergoline/ bromocriptine
Radiotherapy
Investigations for primary hyperparathyroidism?
DEXA scan
USS Abdo
CT/MRI neck (look at parathyroid gland)
Complications of surgical resection of parathyroid adenoma?
Hypoparathyroidism
Laryngeal nerve palsy
Relationship between calcium and Vitamin D?
Vitamin D is needed to absorb calcium in the gut
Name of distribution of sensory loss in diabetes - (hands and feet)
Glove and stocking distribution
In neuropathy secondary to diabetes, what is the first type of sense to be lost?
Vibration sense
Feet findings in diabetes?
Loss of sensation
Charcot’s foot
Painless ulcer
Diminished reflexes
In light of finding neuropathy (microvascular complication of diabetes), what two other area must now be investigated?
Eyes
Kidneys
Diabetic with intractable vomiting?
Autonomic gastroparesis
Histological features of Crohn’s?
Granuloma formation
Transmural inflammation
Lymphocytic infiltration
Extraintestinal features of Crohn’s?
Erythema nodosum
Pyoderma gangrenosum
Conjunctivitis
Ankylosing spondylitis
Apthous ulcers
Long term complications of Crohn’s?
Perianal abscess and fistulae
Bowel perforation
SBO
Colon carcinoma
Malnutrition
MOA of infliximab?
Infliximab is TNFalpha inhibitor.
Antibody is directed against tumour necrosis factor - important in establishing inflammation and granuloma formation.
What meds can contribute to upper GI bleed?
NSAIDS
Aspirin
Steroids
Anticoagulants
Thrombolytics
What will blood results be in upper GI bleed?
Urea raised out of proportion to creatinine indicated upper GI bleed.
How doe liver cirrhosis lead to oesophageal varices?
Venous portal hypertension
Site of portosystemic anastomoses and the symptom it would cause.
Superior rectal vein shunts cause haemorrhoids
Risk factors for peptic ulcer disease?
H. Pylori infx
NSAIDs/steroids
Smoking
Alcohol
Stress
Spicy foods
Investigation for peptic ulcer perforation?
Erect chest X-ray
What would you see on Xray with peptic ulcer perforation
Pneumoperitoneum is seen as free air under the diaphragm
Define GORD
Excessive entry of gastric contents into the oesophagus through the gastro-oesophageal junction
Exacerbating factors of GORD?
Lying flat
Alcohol
Obesity
Food
Hiatus hernia
Patient suffers with GORD also suffers from night-time wheeze but no asthma - what is causing this?
Inhalation of small amounts of gastric contents.
Causes of dysphagia of someone with GORD?
Benign stricture secondary to GORD
Malignant stricture
Pharyngeal pouch
Oesophagitis
Myasthenia gravis
Gold standard for proving GORD?
Oesophageal manometry
Complication of Nissens fundoplication
Dysphagia from compression of the GOJ
Dumping syndrome
Achalasia
Pre-hepatic causes of jaundice?
Malaria
Sickle cell
Thalassemia
G6PD deficiency
Gilbert’s syndrome
Intra-hepatic causes of jaundice?
Viral hepatitis
Paracetamol overdose
Alcoholic hepatitis
Haemochromatosis
Post-hepatic causes of jaundice?
CBD bile stones
Pancreatic caner
PBS
PSC
Why does conjugated bilirubin appear in the urine and unconjugated doesn’t?
Conjugated bilirubin is water-soluble, so dissolves in the urine, making it dark.
What investigation do you do for obstructive jaundice?
USS Abdo
At risk groups for Hepatitis B?
IVDU
Sex workers
Healthcare workers
What does anti-HBC indicate?
Past infection
Long term complications of Hepatitis B?
Cholestasis
Hepatocellular cancer
Cirrhosis
Chronic hepatitis
Viruses that may be co-infected post needle stick injury with Hep B?
HIV
Hep C
Inherited vs acquired causes of cirrhosis?
Inherited:
Haemochromatosis
Wilson’s disease
Alpha-1-antitrypsin deficiency
Acquired:
Chronic alcohol abuse
Chronic viral hepatitis
Autoimmune hepatitis
PBC
Idiopathic
Investigations for synthetic function of the liver?
Albumin or INR/PT
Complications of cirrhosis?
Coagulopathy
Encephalopathy
Hypoalbuminaemia
Sepsis
SBP
Hypoglycaemia
Ascites
Oesophageal varices
Investigations for ascitic fluid?
WCC
MC&S
Cytology
LDH
Glucose
How does lactulose work in hepatic encephalopathy?
Lactulose increases bowel transit which will reduce the number of nitrogen producing bacteria in the gut which contributes to hepatic encephalopathy.
Causes of GI malabsorption?
Coeliac’s
Crohn’s
Chronic pancreatitis
Cystic Fibrosis
Coeliac’s disease signs and symptoms?
Abdo pain
Weight loss
Diarrhoea
N+V
Fatigue
Iron deficiency anaemia
Osteomalacia
Dermatitis herpetiformis
Commonest source of gluten?
Wheat
Blood test for Coeliac’s?
Anti-TTG antibodies and IgA
Histological findings on Coeliac’s biopsy?
Crypt hyperplasia and villous atrophy
Autoimmune diseases that Coeliac’s is associated with?
T1DM
Thyroid disease
Drugs that cause constipation?
Opioids
Iron
Anticholinergics
Mechanical causes of constipation?
Colorectal cancer
Stricture (e.g. Crohn’s)
Pelvic mass
Lifestyle causes of constipation?
Dehydration
Immobility
Poor diet
Psychological disorders related to IBS?
Depression
Stress disorder
Anxiety
IBS patient with weight loss, fatigue, increasing abdo pain and new iron-deficiency anaemia.
What investigation and why?
Colonoscopy
Investigate for right sided colonic tumour as may present as unexplained iron-deficiency anaemia.
Predisposing factors to colonic carcinoma?
Ulcerative colitis
Crohn’s disease
FAP (familial adenomatous polyps)
HNPCC
Low-fibre diet
Colorectal cancer metastases sites?
Liver
Lung
Bone
Lymph
Viral cause of gastroenteritis?
Rotavirus
Norovirus
Adenovirus
Astrovirus
Drugs that increase risk of C.diff infection?
Fluoroquinolones
Clindamycin
Cephalosporins
Penicillins
Infection control measures used when treating acute diarrhoea?
Isolation of patient
Hand-washing
PPE
Reduce number of contacts with patient