Final Exam

Question 1

What is the most dangerous form of PVC?

Answer 1

1. Multifocal (Run of PVCs)
2. R on T phenomenon, where the R wave of a PVC lands on the T wave of a normal beat.

**Both lead to V-tach with is lethal if not treated

Question 2

What drug is used to treat V-tach?

Answer 2

To tx pulseless VT:

• Amiodarone 300mg IV push
• Amiodarone 150mg in 3-5 min
• Max dose 450mg, 2.2g/24hr

Question 3

What part of the EKG represents atrial depolarization?

Answer 3

P wave

Question 4

What is cardioversion?

Answer 4

A SYNCHRONIZED shock delivered to the heart during an elective procedure.

Question 5

What rhythms can be cardioverted?

Answer 5

1. V-tach, SVT (supraventricular VT) with a pulse

2. Can be used electively for A-fib & A-flutter

Question 6

What rhythm is characterized by chaotic atrial activity with an irregularly irregular rhythm and no discernible P waves on the EKG?

Answer 6

Atrial fibrillation

Question 7

What is a common complication of A-fib

Answer 7

PE/DVT

Question 8

What is the normal QRS interval

Answer 8

.

Question 9

What does the QRS represent

Answer 9

.

Question 10

Lethal Arrhythmias

Answer 10

.

Question 11

This rhythm is characterized by increased rate with inspiration and decreased rate with expiration?

Answer 11

Sinus dysrhythmia

Question 12

What age groups are most commonly affected by Sinus dysrhythmias?

Answer 12

-Infants/Children & Elderly

Question 13

This rhythm is characterized by intermittent conduction of the atrial impulse to the ventricles

Answer 13

Atrial flutter

Question 14

This rhythm is characterized by independent atrial and ventricular activity?

Answer 14

Third degree Heart Block

Question 15

What is the treatment for third degree heart block?

Answer 15

.