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MEDI > Cardio I - Tachyarrhythmias > Flashcards

Cardio I - Tachyarrhythmias Flashcards

1
Q

How are premature atria contractions treated if asymptomatic? Symptomatic?

A

Asymptomatic - no treatment

Symptomatic - Beta blocker

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2
Q

How are premature AV junctional beats treated?

A

No treatment

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3
Q

What condition when coupled with premature ventricular contractions requires treatment? By what? If also has cardiac disease and is considered high risk?

A

LV dysfunction
Beta Blockers
AICD or amiodarone

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4
Q

What is “irregular irregularity” seen in?

A

Atrial fibrillation

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5
Q

What are the three types of A fib? How are each treated?

A

Paroxysmal - less than 7 days, terminates spontaneously
Persistent - greater than 7 days, cardiovert
Permanent - greater than 7 days, sinus rhythm not possible, rate control

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6
Q

What can appear to be atrial fibrillation but has regular ventricular rate?

A

AV block

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7
Q

Enlargening/changes in what chamber during atrial fibrillation are not conducive to cardioversion?

A

Atrium

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8
Q

What are the three main goals/treatments for atrial fibrillation?

A

Correct underlying etiology
Cardioversion
Rate control

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9
Q

How fast is the flutter rate in atrial flutter? What is always treatment? What is the cure? What is used to prevent?

A

250-300
Cardioversion
Ablation
Rate control (BB, digoxin, CCA)

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10
Q

How are supraventricular tachycardias treated?

A

Ablation

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11
Q

How are multifocal atrial tachycardias treated (correcting what two things)? What is a distinguishing factor?

A

Correct hypoxia and acidosis

3 or more consecutive different P-waves with rate > 100

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12
Q

What is the treatment for preexcitation? For nonparoxysmal junction tachycardia? What must not be done in the latter?

A

Localize and ablate
Override pacing, treat cause
Do not cardiovery

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13
Q

What is the preferred treatment for ventricular tachycardia? What else is sometimes used?

A

Cardioversion

Rate control, override pacing

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14
Q

What distinguishes torsades de pointes from polymorphic ventricular tachycardia? How are each treated?

A 
Torsades de pointes - prolonged QT - BB, magnesium, pacing
Polymorphic VT - normal QT - class I or III agent
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15
Q

Is there a treatment for accelerated idioventricular tachycardia? What is another name?

A

No

“Slow v-tach”

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16
Q

What is first line treatment for ventricular flutter/fibrilation?

A

Crdioversion

17
Q

What little wave at the end of the QRS complex can predispose someone to ventricular tach?

A

Epsilon waves

MEDI (11 decks)

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