Passmed Flashcards

1
Q

What use to treat torsades de points

A

IV Magnesium sulphate - stabilise cardia membrane

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2
Q

What is adenosine used for

A

Revert patients back to sinus rhythm with SV tachycardias

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3
Q

What is amiodarone used in

A

Management of broad complex tachycardia in stable patients
Shockable and non shockable rhythms in resus scenrios
Prolongs QT interval

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4
Q

What is atropine

A

Anticholinergic - increases HR + improves AV conduction by blocking ParaNS on heart

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5
Q

Why is atropine not recommended in torsades de pointes

A

Can induce paradoxical bradycardia - worsening arrhtyhmia

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6
Q

Causes if long QT interval

A

Congenital
Antiarrhtyhmics - amiodarone, sotalol, class 1a AR drugs
TCAs
Antipsychotics
Chloroquine
Terfenadine
Erythromicin
Electrolye - Hypocalcemia, hypokalemia, hypoMg
Myocarditis
Hypothermia
SA haemorrhage

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7
Q

What can happen after large volume pneumothorac chest drain

A

Pulmonary oedema

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8
Q

What offer if GRACE score >3% in NSTEMI

A

Coronary angiopathy within 72 hours

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9
Q

What medication give in NSTEMI that is stable

A

300mg aspriin, ticragelor and fondaparinux

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10
Q

When should fibrinolysis be offered in a STEMI

A

should be offered within 12 hours of the onset of symptoms if primary PCI cannot be delivered within 120 minutes

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11
Q

When do you give fondaparinux in NSTEMI/unstable angina

A

If no immediate PCI planned

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12
Q

When give unfractionated heparin in NSTEMI

A

if immediate angiography is planned or a patients creatinine is > 265 µmol/

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13
Q

When do immediate coronary angiography in NSTEMI

A

patient unstable eg hypertensive

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14
Q

What meds give prior to PCI

A

Aspirin + prasurgrel or ticregalor
If already on anticoag - clopidegrel + aspirin

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15
Q

Which antiplatelt give depending on bleeding risk

A

Not high= ticregalor
High = clopidegrel

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16
Q

When should nitrates be used with caution in MI

A

Patient hypotensive

17
Q

What cardiac marker is best for picking up re-infarcts after initial MI

A

CK-MB as returns ti noraml after 4 days - if another MI between 4-10 dyas CKMB is best If after 10 dyas troponin T

18
Q

What size pneumothorax can discharge if clinically well

A

<2cm

19
Q

What MOA of dabigatran

A

Direct thrombin inhibitor

20
Q

What MOA of heparin

A

Activates antithrombin III

21
Q

What factors does warfarin inhibit

A

Factor II, VII, IX, X

22
Q

DOAC usage

A

Non valvular AF if prev stroke/TIA, >75, HPTN, DM, HF
Prevention VTE after hip.knee surgery
Treatment DVT nad PE

23
Q

What side effect of hydroxychloroquine need to counsel patient about

A

Risk of retinopathy

24
Q

What drug can affect thyroid function

A

Amiodarone

25
Q

What GCS intubate at

A

<8

26
Q

What conditions would cause a pleural effusion of transudate

A

protein/serum ratio <0.5
Nephrotic syndrome -> loss of albumin

27
Q

Pleural effusions imaging

A

posterioranterior (PA) chest x-rays should be performed in all patients
ultrasound is recommended
contrast CT is now increasingly performed to investigate the underlying cause, particularly for exudative effusions

28
Q

Why may howell jolly bodies be seen in coeliac disease

A

Hyposplenism
and antiTTG

29
Q

Hyposplenism histology

A

target cells
Howell-Jolly bodies
Pappenheimer bodies
siderotic granules
acanthocytes

30
Q

What cells see in megaloblastic anaemia

A

hypersegmented neutrophils

31
Q

When are oral antibiotics given in otitis media

A

> 4 days symptoms
Systemically unwell
High risk complications
<2 and bilateral otitis media
Tymopanic membrane perforated

32
Q

When are NG tubes safe to use from aspirate

A

pH <5.5

33
Q

What eye palsy can raised ICP cause

A

CNIII due to herniation
Down and out deviation of eye

34
Q

Ank spond features - the as

A

Apical fibrosis
Anterior uveitis
Aortic regurgitation
Achilles tendonitis
AV node block
Amyloidosis
and cauda equina syndrome
peripheral arthritis (25%, more common if female)