Medicine Flashcards
Reed sternberg cells
Hodgkins Lymphoma
Histological triad of hypersensitivity pneumonitis
Interstitial inflammation, chronic bronchiolitis and non necrotising granuloma
Always consider with occupation exposure to mould, hay, fungus, pigeons, popcorn, hot tubs etc
Post MI Care
Secondary prevention - stop smoking, cardiac rehab, lose weight, reduce salt and improve diet
Dual antiplatelet - 75mg aspirin and 75mg clopidogrel/ticagregel
B- blocker - bisoprolol
ACEi - ramipril
80mg atorvastatin OD
Temporal lobe eye lesion
Homonymous upper quadrantanopia
Parietal lobe eye lesion
Homonymous lower quadrantanopia
Conditions associated with pyoderma gangrenosum
IBD, RA, myelocytic leukemia and hairy cell leukemia
SE of bisphosphonates
Gastritis/ oesophagitis
Osteonecrosis of the jaw
Digoxin toxicity
Can be precipitated by hypokalemia and hypercalcemia. Causes bradycardia, yellow visual disturbance. Careful in AKI as renally excreted
Antibodies raised in SLE
Anti ds-DNA 60% sensitive, 90% ANA +ve
Less specific - anti SM and anti phospholipid
SLE PC
Relapsing remitting illness where autoantibodies form immune complexes which deposit throughout the body
4/11 to diagnose:
Malar rash sparing of nasolabial folds
Discoid rash - Erythematous patches with adherent keratotic scales
Photosensitivity
Non erosive arthritis 2+ joints
Oral/nasopharnygeal ulceration
Serositis
Renal disorders - red cell casts or persistent proteinuria
CNS - seziures/psychosis in absence of neurological cause
Haematological - haemolytic anameia, leucopenia or thrombocytopenia
+ve ANA
+ve immune markers ie anti dsDNA, anti SM
Testicular cancer tumour markers
aFP and Bhcg. 90% = germ cell tumours
Pyloric stensosis PC
Typically forceful non bilous projectile vomiting often with a palpable sausage shaped mass in the abdomen
Duodenal atresia
Congential constriction of the duodenum leading to bilous vomitng after first feed. Double bubble sign on xray indiciated of proximal duodenal dilation
MOA bisphosphanates
Inhibit bone reabsorption by inhibting osteoclasts and binding to calcium phosphate crystals
Erythema nodosum
Associated with TB, sarcoidosis
Glucagon stimulation test
GH, cortisol and C-peptide
Frontotemporal dementia
disinhibition, aggression, anxiety and emotional behaviour. Usually symptoms including stealing/obsession precede memory loss
CT in FTD
Collection of tau bodies and degeneration of the frontotemporal lobe
Paraaortic lymph node in cancer
Often first site of metasasis in testicular, ovarian and endometrial cancer
Insulin perioperatively
Continue long acting
Stop short acting commence on variable rate (sliding scale ) insulin infusion
Life threatening asthma
Normal/high PaCO2
Cyanosis, silent chest
Peak flow <33% of best
PaO2 <8 or sats <92
Severe asthma
Peak flow 33- 50%
RR > 25, HR > 110
Unable to speak in full sentences
Hyperprolactinoma
Amenorrhoea, reduced libido and glacatorrhoea
Invx of GH defiency
Insulin tolerance test used to induced hypoglycemia ACTH and GH are released as a stress response
ACEi acceptable creatinine rise
30%. Care of underlying renal artery stenosis
Plummer Vinson syndrome
Dysphagia, upper oesophageal web and iron defiency anaemia
Periductal mastitis
Infection of the ducts within the nipple. PC = pain, periareolar mass and green/yellow discharge. Needs USS in clinic +/- FNA if suspicious
Mx - oral fluxcloxacillin +/- drainage
Fibroadenoma
Benigin breast tumour mobile small well defined breast mouse. Rarely painful doesn’t = erythema or discharge
Fibrocystic disease
Benign breast tissue disease commonly seen in females 30-50 y/o. PC breast swelling, multiple tender lumps and nipple discharge. Varies with menstrual cycle
Cryptococcal meningitis + CSF
Fungal meningitis commonly seen in immunocomprimised . Stained with india ink encapsulated organisms
CSF = high opening pressure, lymphocytic, high protein, glucose normal/low
Clarithromycin and warfarin
Enzyme inhibitor reduces metabolism of warfarin increasing INR
Hyperkalemia on ECG
Tall tented T waves, widened QRS, short PR
Hypothermia ECG
Bradycardia, J wave at end of QRS, 1st degree HB and long QT interval
SUFE Mx
In screw fixation
Supracondylar fracture risks of injury
Common fracture in children risk of damage to the brachial artery which runs posterior to the condyle. May present with cool pulseless hand
Mid shaft humeral fractures
Radial nerve. Loss of sensation over dorsum of hand and extensor muscles of the arm
Pneumocystis jirovecii pneumoniae
Fungal pneumonia AIDS defining illness classically presenting with desaturation on exertion
Anti-TB drug side effects
Rifampacin - orange coloured tears/urine, rashes, hepatotoxicity
Ethambutol - optic neuritis, red/green colour blindness
Isonazid - peripheral neuropathy
Normal urine output
0.5ml/kg/hr
Molluscum contagiosum
Viral diease caused by HSV - flesh colour umbilicated semi-spherical papules. Conservative management may take up to 2 years to resolve completely
Drug induced Parkinsons
Usually dopamine antagonists such as metaclopramide and anti-psychotics
Acute management of pneumothorax
Only if >2cm on CXR or breathless. Needle decompression at 2nd ICS only for tension pneumothorax.
Protcol = 2x aspirate then chest drain
Essential thrombocytosis Mx
Hydroxyurea
Essential thrombocytosis
Platelets >450x109. +/- splenomegaly, bleeding/thrombosis Linked to JAK2 mutations
Indications for dialysis
K+ refractory to treatment/ >6.5, acidosis <7.2, uremic encehalopathy, toxins, refractory pul oedema
Meniere’s triad
Episodic hearing loss, tinnitus and vertigo
Sheehan’s syndrome
Hypopituitarism secondary to infarction of the anterior pituitary due to postpartum haemorraghic shock
Masquerades as primary hyperparathyroidism
Familial hypocalcuric hypercalcaemia, urinary calcium is raised in 1 hyperparathyroid
Budd Chiari syndrome
Venous thrombosis within the hepatic venous system leading to venous outflow obstruction hence sinusoidal congestion and hepatocyte dysfunction. Clinically new-onset ascites secondary to portal HTN
Invx Budd-Chiari
Portal USS looking for caudate lobe swelling and evidence of hepatic vein obstruction
HSV 1
Oral herpes
HSV 2
Genital herpes
Mx chlamydia
Stat dose of azithromycin
Renal stones unlikely to pass
> 0.5 cm. Needs admitting diclofenac, IV fluids and antiemetic. Either lithotripsy or nephrolithotomy if >2cm
Beurger’s disease
Thromboangitis obliterans - segmental thrombosis + acute/chronic inflammation of medium/small arteries often in tibial/radial arteries. Heavily linked to smoking. Rest pain and ulceration. Presents in <35y/o
Coarctation of aorta
Narrowing of aorta often at ducuts arterious. Presents with eak femoral pulse or radiofemoral delay. Prostaglandin infusion to maintain patency of PDA. Lifetime risk of CVA and CVD
Renal stone cause
75% due to hypercalcaemia
AI hepatitis antibodies
80% specific anti smooth muscle. ANA also +ve
T2 AIH = anti-LMK
Di-George syndrome
Cardiac - TOF, VSD etc Abnormal facies Thymic hypoplasia - increased infection risk Cleft palate Hypoparathyroid - low Ca2+
Neural crest defects
Pre-patellar bursitis
Housemaids Knee - warm swollen knee + effusion. No raised inflammatory markers
Arteries occluded in testicular torsion
Testicular arteries - branches of aorta @ L2. Surgery within 6hrs to prevent ischemia
Diagnosis of COPD
FEV1 < 80%, FEV1/FVC <0.7
Bechets syndrome
Multisystem disease characteristed by oral and genital ulceration. Systemic perivasculitis - increased VTE risk
Anti-saccharomyces cerevisea
Turners syndrome
45X. Short webbed neck, low hairline, high arched palate. Cardiac abnormalities CoA/ bicuspid aortic valve. Short stature, widely spaced nipples, sparse axillary/pubix hair. Ovarian agenesis - premature ovarian failure
Acute radiation dermatitis
Often erythematous and sharply demarcated +/- weeping bullae and ulceration. Supportive usually resolves with treatment cessation
Tear of supraspinatus
Initiates abduction for 15o
Post partum hemorrhage definition
1 - s 24hrs of delivery
2- After 24hrs - 6 week
Major >1000mls
Cause of 2nd trimester miscarriage
Antiphospholipid
Septate/bicornate uterus
Cervical incompetence
Legionella pnuemonia
Harboured in air conditioning systems
Dry cough
+/- hyponatremia, deranged LFTS
Mycoplasma pneumonia
Erythema multiforma and cold hameolytic anaemia.
Medical termination
Before 14 weeks = oral mifepristone and outpatient vaginal misprostol
Expect crampy abdo pain and bleeding
Mifepristone - progesterone antagonist promoting degradation of endometrium and ripening of the cervix
Misoprostol - prostaglandin analogue promoting contraction of uterus hence expulsion
ADPKD Genetics
PKD1 gene cr16 = 85%, PKD2 gene cr4
Dermatitis herpatiformis
Linked to coeliac disease symmetrical clusters of blisters at shoulder/buttocks/knees/elbows
Isograft
Tissue transplant between two genetically identical induviduals ie monozygotic