Ch5

Question 1

1 Ventricular diastolic refers to ventricular:

Answer 1

B Relaxation

Question 2

2 The electrocardiogram is used to:

Answer 2

C Evaluate electrical activity in the heart

Question 3

3 The PR interval should normally be __ seconds or smaller

Answer 3

B 0.12

Question 4

4 The QRS interval should normally be

Answer 4

A. 0.20

Question 5

5 The QRS complex is produced when

Answer 5

D

B Ventricles depolarize
C Ventricles contract

D both B & C

Question 6

6 The normal conduction pattern of the heart follows which sequence?

Answer 6

1 SA node
6 Inter nodal pathways
4 AV node
3 Bundle of His
5 bundle branches
2 Purkinje fibers

B

Question 7

7 The T wave on the EKG strip represents:

Answer 7

A rest period

Question 8

8 The coronary circulation has how many main arteries?

Answer 8

A Two
B Six
C Four
D Eight

Question 9

9 When interpreting dysrhythmias, the healthcare provider she remembered that the most important key is the

Answer 9

D patient’s clinical appearance

Question 10

10 A graphic record of electrical activity of the heart is an:

Answer 10

B electrocardiogram

Question 11

11 Well EKG analysis serves as a useful diagnostic tool, the healthcare professional must be cognizant of the fact that the EKG is a graphic tracing of electrical activity of the heart but not the Makenna her activity of the heart.

Answer 11

A True

Question 12

12 The ground lead service to minimize outside electrical interference

Answer 12

A True

Question 13

13 Exact portion of the heart being visualize depends, in large part, on the placement of the:

Answer 13

C Electrodes

Question 14

14 Lead two is the most commonly used for cardiac monitoring because it’s ability to visualize __ waves.

Answer 14

A P

Question 15

15 __ Leads are those that have one positive electrode and one negative electric.

Answer 15

A Bipolar