Medicine Flashcards

(46 cards)

1
Q

What is thalassaemia

A

genetic defect in the protein chains that make up haemoglobin

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2
Q

What is the normal structure of haemoglobin?

A

2 alpha chains
2 beta chains

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3
Q

Why does beta thalassaemia have different severities?

A

gene can be abnormal or have deletion
ie. 1 abnormal 1 normal
2 abnormal or 1 abnormal 1 deletion
Most severe - 2 deletions

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4
Q

management of reactive arthritis?

A

ibuprofen
if contraindicated then steroids

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5
Q

what medication should be given to women with anti-phospholipid syndrome?

A

LMW heparin acutely
warfarin lifelong

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6
Q

when are nitrates contraindicated?

A

severe aortic stenosis - risk of profound hypotension

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7
Q

What disease causes erythema marginatum? Annular erythematous rash on trunk and inner arms/legs, non-pruritic

A

Rheumatic fever

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8
Q

Which valvular pathology is assoc with rheumatic fever?

A

Mitral stenosis - mid diastolic

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9
Q

Which bacteria causes typhoid?

A

Salmonella type - constipation not diarrhoea

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10
Q

what’s assoc with bence jones protein?

A

multiple myeloma

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11
Q

features of multiple myeloma

A

hypercalcaemia, renal damage, anaemia, thrombocytopenia, infection

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12
Q

on CXR, what does a widened mediastinum represent?

A

aortic dissection

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13
Q

what are the causes of dilated cardiomyopathy?

A

idiopathic
alcohol
coxsackie B virus
wet beri beri
doxorubicin

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14
Q

Features of tuberous sclerosis

A

ash leaf spots, fibromata underneath nails, cafe au lait spots, epilepsy, delay, learning difficulties, retinal hamartomas, polycystic kidneys

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15
Q

Features of dengue fever

A

retro-orbital headache, fever, facial flushing, rash, thrombocytopenia, recent travel
flavivirus spread by mosquitoes

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16
Q

typical feature of chagas disease

A

swelling of eyelids

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17
Q

features of malaria

A

prodrome = headache, myalgia, diarrhoea
cold stage
hot stage = fever, vomit, flushing
sweating stage

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18
Q

Pt had a PCI this afternoon, now experiencing severe chest pain again, management?

A

CABG

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19
Q

What is thoracic outlet syndrome?

A

compression of brachial plexus/subclavian artery/vein at thoracic outlet due to trauma or anatomical abnormality (cervical rib)

19
Q

What is thoracic outlet syndrome?

A

compression of brachial plexus/subclavian artery/vein at thoracic outlet due to trauma or anatomical abnormality (cervical rib)

20
Q

how is anion gap calculated?

A

(Na + K) - (bicarb+ Cl)

21
Q

what is indapamide?

A

a thiazide-like diuretic

22
Q

what are the fluid requirements for an adult?

A

25 ml/kg/day water
1mmol/kg/day K
50-100g/day glucose

23
Q

signs of R heart failure

A

raised JVP, hepatomegaly, peripheral oedema

24
MEN type 1 features
3 Ps Parathyroid (hyper) Pituitary Pancreas - insulinoma/gastrinoma (recurrent peptic ulceration)
25
MEN IIa
Parathyroid Phaeochromocytoma +medullary thyroid cancer
26
MEN IIb
Phaeochromocytoma + medullary thyroid cancer, marfanoid body, neuromas
27
Zollinger Ellison syndrome
gastrin secreting tumour in pancreas/duodenal wall leads to increased HCl acid production -> recurrent peptic/duodenal ulcers
28
co-amoxiclav + deranged LFTs
cholestasis
29
How does Gilbert's syndrome affect LFTs?
solitary raised bilirubin
29
How does Gilbert's syndrome affect LFTs?
solitary raised bilirubin
30
Lyme disease treatment?
oral doxycycline
31
What causes Lyme disease?
borrelia burgdorferi - spirochaete spread by ticks
32
which causes of nausea is cyclizine appropriate for?
intracranial/vestibular GI obstruction raised ICP
33
Pneumonia after influenza, what's the most likely organism?
Staph aureus
34
migraine medical management?
acute = NSAID + Triptan + paracetamol prevention = topiramate or propanolol
35
which medication can be used for ER (oestrogen receptor) positive breast cancers?
if post menopausal -> anastrozole (reduces peripheral oestrogen synthesis)
36
which medication is used in HER2 positive breast cancers?
trastuzumab (Herceptin)
37
features of wernickes encephalopathy?
Confusion Ataxia Nystagmus Opthalmoplegia Peripheral Neuropathy
38
patient presents with TIA, which medication should be given?
300mg aspirin + specialist review within 24 hours (don't drive until this)
39
which antibiotic can't be prescribed with methotrexate?
Trimethoprim/co-trimoxazole - all folate antagonists -> myelosuppression means risk of life-threatening infection and severe bleeding
40
which contraceptive is assoc with weight gain?
depo-provera
41
how do you diagnose a miscarriage on USS?
Crown-rump length >7mm and no heart beat
42
what test is diagnostic for acromegaly?
OGTT + measurement of GH, MRI pituitary showing adenoma
43
back pain, weak hip abduction + foot drop = which dermatome?
L5
44
Cluster headache - long term prevention?
verapamil