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Step 2 ck > Arryhthmias > Flashcards

Arryhthmias Flashcards

1
Q

What is Bradyarrhymia?

A

Less than 60bpm

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2
Q

A normal axis has upright leads in which leads?

A

Lead 1 and avF - double thumbs up

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3
Q

What sign indicates a left axis deviation?

A

Upright in lead 1 and down in aVF

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4
Q

What sign indicates a right axis deviation?

A

Down in lead 1 and up in avF is right axis

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5
Q

How do you know if there is a heart block?

A

PR interval > 200msec or a P with no QRS

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6
Q

How do you know if there is a bundle branch block?

A

QRS > 120msec

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7
Q

In a patient with COPD which block do you think of?

A

RBBB

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8
Q

How can you treat sinus bradycardia if you need to increase heart rate?

A

Atropine

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9
Q

What is the definitive treatment for bradycardia?

A

Pacemaker

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10
Q

Is treatment necessary for RBBB?

A

No

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11
Q

How do you diagnose RBBB?

A

QRS duration greater than 120msec, QRS with wide S wave in V6

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12
Q

How do you treat LBBB?

A

Ventricular pacemaker indicated for post-MI LBBB with conduction defect

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13
Q

What is associated with a first degree AV block?

A

increased vagal tone, B-blockers, and calcium channel blockers

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14
Q

How do you diagnose first degree AV block?

A

PR interval > 200msec (think just the beginning, prolonged PR interval)

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15
Q

How do you diagnose second degree AV block (Mobitz type 1)?

A

increased PR interval until a dropped beat occurs, then PR resets

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16
Q

What drugs are associated with second degree AV block?

A

Digoxin, beta blockers, calcium channel blockers or increased vagal tone

17
Q

How do you treat second degree AV block?

A

Stop the offending drug

18
Q

How do you diagnose second degree (Mobitz type II) AV block?

A

Dropped beat with no changed in PR interval

19
Q

What causes second degree mobitz type II?

A

Fibrotic disease of the conduction system or a previous setpal MI

20
Q

Are there symptoms in second degree mobitz type II AV block?

A

Syncope or progression to type III

21
Q

What is the treatment for Second degree mobitz type II AV block?

A

pacemaker

22
Q

How do you diagnose Third degree (complete) AV block?

A

no relationship between P and QRS complexes

23
Q

Treatment for Third degree AV block includes?

A

Pacemeker placement

24
Q

Symptoms of Third degree AV block are?

A

Syncope, dizziness, acute heart failure, hypotension and cannon A waves

25
Q

What is atrial fibrillation caused by? (PIRATES)

A

Pulmonary disease, ischemia, rheumatic heart disease, anemia/atrial myxoma, thyrotoxicosis, ethanol, sepsis

26
Q

What is treatment for atrial fibrillation?

A

Anticoagulation (to prevent thrombus formation and stroke), rate control (calcium channel blockers, beta blockers, digoxin), and cardioversion if it is of new onset (less than 48 hours)

Step 2 ck (1 decks)

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