Rhythm Basics

Question 1

What are the ventricular rhythms ?

Answer 1

Premature ventricular complex (PVC), Idioventricular rhythms, ventricular tachycardia, ventricular fibrillation

Question 2

What happens in the heart when a pacemaker accurately captures ?

Answer 2

a chamber depolarizes and leads to contractions

Question 3

What is irregularity based on ?

Answer 3

R to R

Question 4

Where does an upright pwave come from ?

Answer 4

SA node

Question 5

What happens in the heart in the ST segment ?

Answer 5

Ventricular repolarization

Question 6

What happens in the heart in the p-wave ?

Answer 6

atrial depolarization

Question 7

What happens in the heart in the qrs complex ?

Answer 7

ventricular deploarization

Question 8

What is a normal QT interval ?

Answer 8

0.36 to 0.44

Question 9

What is a normal QRS ?

Answer 9

less than 0.12

Question 10

What is a normal PRI ?

Answer 10

0.12 to 0.20

Question 11

If the BPM is lower than 40, what may the rhythm be ?

Answer 11

idioventricular, junctional escape, or brady

Question 12

What is a pulseless rhythm with an ekg called ?

Answer 12

pulseless electrical activity

Question 13

What are the lethal rhythms ?

Answer 13

vtach, vfib, asystole, and torsades

Question 14

Name 4 types of artifacts

Answer 14

multichannel, tremor, ac interference, and wandering baseline