Tachycardia Practice Test

Tachycardia is defined as:

An arrhythmia with a rate greater than 150/min

An arrhythmia with a rate greater than 100/min

Any rhythm disorder with a heart rate less than 60/min

An organized rhythm without a pulse

Synchronized cardioversion is recommended for:

Monomorphic VT in a stable patient

Pulseless rhythms

Unstable SVT

Polymorphic VT

What is the correct energy dose for unstable atrial fibrillation when delivering monophasic synchronized shocks?

50 to 100 J

100 J

Treat with high-energy shocks (defibrillation doses)

200 J

AV nodal blocking agents should be avoided in:

Patients with a regular SVT

Patients with a regular VT

Patients with an irregular wide-complex tachycardia

All of the above

Which drug is the preferred intervention for terminating narrow-complex tachycardias that are symptomatic (but stable) and supraventricular in origin (SVT)?

Epinephrine

Amiodarone

Atropine

Adenosine

Adenosine should not be given to:

Patients with asthma

Pregnant women

Patients with SVT

Patients with a narrow QRS with regular rhythm

If SVT does not respond to vagal maneuvers, how much adenosine do you give:

20mL rapid IV push

12 mg rapid IV push

6 mg IV push over 10 seconds

6mg rapid IV push over 1 second

Which of the following statements is not true?

Sinus tachycardia is a heart rate that is greater than 100/min and is generated by sinus node discharge

Sinus tachycardia is caused by cardiac conditions

In sinus tachycardia, the goal is to identify and treat the underlying systemic cause.

Cardioversion is contraindicated in Sinus Tachycardia

Vagal maneuvers alone will terminate about what percentage of SVTs?

25%

90%

75%

50%

End points for the administration of procainamide include:

Hypotension

Duration of QRS increases by 25%

Maximum dose of 7 mg/kg is reached

Increase in heart rate by 30 points

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