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Emergency Medicine > MTB 3 > Flashcards

MTB 3 Flashcards

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Royal College: Emergency Medicine flashcards
1
Q

Presentation of Wolff Parkinson White

A

SVT alternating w v tach
SVT worse w diltiazem or digoxin
Delta wave on EKG
- makes PR appear short and QRS appear long

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2
Q

Pathophys of Wolff Parkinson White

A

Preexcitation syndrome w early depolarization of ventricle

Short PR interval

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3
Q

Most accurate test for Wolff Parkinson White

A

Cardiac electrophysiology studies

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4
Q

TX for Wolff Parkinson White currently present w arrhythmia

A

Acute: Procainamide or Amiodarone

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5
Q

Chronic TX for Wolff Parkinson White

A

Radiofrequency catheter ablation = curative

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6
Q

Drugs CI in Wolff Parkinson White

A

Digoxin
CCBs
Block normal AV node force conduction thru accessory

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7
Q

Multifocal Atrial Tachycardia ass’d with

A

COPD

Chronic Lung Dz

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8
Q

MAT Tx

A

Sames as A fib

Avoid Beta blockers b/c of lung dz

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9
Q

EKG of MAT

A

3 different P wave morphologies

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10
Q

TX for Asymptomatic sinus bradycardia

A

No Tx

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11
Q

Best initial TX for symptomatic sinus bradycardia

A

Atropine

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12
Q

MOA Atropine

A

Anticholinergic

Dry as bone, hot as hare, blind as bat, mad as a hatter, red as a beat

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13
Q

Most effective TX for symptomatic sinus bradycardia

A

Pacemaker

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14
Q

EKG of First degree AV block

A

Increased PR interval

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15
Q

EKG of Second degree heart block - Mobitz I

A

Weknckebach
Progressively lengthening PR interval
Dropped beat

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16
Q

EKG of Second degree heart block - Mobitz II

A

Drops a beat w/out progressive lengthening of PR

PRs are constant

17
Q

TX for Asymptomatic Mobitz I

A

Nothing.

18
Q

TX for Mobitz II Symptomatic

A

Pacemaker for All

19
Q

TX for Mobitz II Asymptomatic

A

Pacemaker for All

20
Q

EKG of Third Degree Heart block

A

Complete block

P waves and T waves have no relationship

21
Q

TX for third degree heart block

A

Pacemaker

22
Q

Post MI pt develops V tach on 2nd hospital day - next step in management

A

Angiography for angioplasty or bypass

23
Q

Most important risk correlate for recurrent V tach

A

LV Fnc
Assess with Echo
- Normal EF = low risk
- Low EF = high risk

Emergency Medicine (4 decks)

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