ECG Flashcards
1
Q
ECG in digoxin toxicity
A
- arrhythmia; bradycardia, AV block
- short QT interval
- down slopping ST depression ‘reversed tick’
- flattened / inverted T wave
2
Q
SVT - mx, prophylaxis
A
- valsava manoeuvre, carotid sinum massage
- adenosine 6mg / 12mg / 12mg
- contraindicated in asthmatics
- electrical cardioversion
Prophylaxis- b-blocker, ablation
3
Q
Pericarditis
- sx
- causes
- ECG changes
- mx
A
- chest pain, relieved by leaning forward
- idiopathic, post MI ( dresslers syndrome ), viral, hypothyroidism
- ECG - widespread saddle shaped ST, PR depression
- mx ; nsaids with colchicine, if not working add prednisolone
4
Q
Infective endocarditis
- abx regime initial blind treatment for native valve, prostethic valve
A
- native valve, fluclox + low dose gent
- native valve w pen allergy, vancomycin + gent
- prosthetic valve, vancomycin + rifampicin + low dose gent
5
Q
Statins
- MOA
- A/E
- contraindications
A
- inhibits HMG- COA reductase, rate limiting enzyme in cholesterol synthesis
- myopathy, LFT derangement (check baseline, 3 months, 12 months)
- macrolides ( erythromycin, clarithromycin ), pregnancy
6
Q
ECG change
V1-V4
A
- anteroseptal
- left anterior descending
7
Q
ECG change
II, III, AVF
A
- inferior
- righy coronary
8
Q
ECG change
V4-V6, I, AVL
A
Anterolateral
- LAD or Left circumflex
9
Q
ECG change
I, AVL, V5-V6
A
Lateral
Left circumflex
10
Q
ECG change
Tall R waves V1-V2
A
Posterior
- left circumflex, right coronary
11
Q
Cardiac tamponade
- cause pathophysiology
- becks triad
- signs
A
- fluid in percardial sac
- becks triad; hypotension, raised JVP, muffled heart sound
- absent Y in JVP, pulsus paradoxus
12
Q
WPW
- ECG sign
- mx
- acute mx if pt in fast AF
A
- short pr, delta wave, left / right axis deviation
- ablation
- flecanide. Dont give bblocker as AV nodal blocking may enhance accessory pathway leading to VF.
