Ch 6

Question 1

1 When dealing with EKG interpretations, you should always avoid short cuts and assumption because often a quick glance at a strip will lead to an incorrect interpretation.

Answer 1

B true

Question 2

2 The intrinsic firing rate of the AV node is __ bpm.

Answer 2

D 40 to 60

Question 3

3 You must master they excepted parameters for each dysrhythmia and then apply those parameters to each of the five steps when analyzing the EKG strip.

Answer 3

A True

Question 4

4 The electrocardiogram is used to:

Answer 4

C Evaluate electrical activity of the heart

Question 5

5 The PR interval should normally be __ seconds or smaller.

Answer 5

B 0.12

Question 6

6 The QRS Interval should normally be __ seconds or smaller.

Answer 6

D. 0.20

Question 7

7 Artifact is defined as EKG wave forms from sources outside the heart.

Answer 7

A True

Question 8

8 Causes of artifact include:

Answer 8

D

A Patient movement
B Loose electrodes
C Improper grounding
D All of the above

Question 9

9 The point at which the QRS complex needs to ST segment is commonly referred to as the:

Answer 9

B J point

Question 10

10 The term superventricular refers to a stimulus arising above the ventricles.

Answer 10

A True

Question 11

11 The T wave on the EKG strip represents:

Answer 11

A Rest period

Question 12

12 When interpreting dysrhythmias, you should remember that the most important key is the:

Answer 12

D Patient’s clinical appearance

Question 13

13 The healthcare professionals should read every EKG strip from left to right starting at the beginning of this trip.

Answer 13

A True

Question 14

14 The sharp, negative deflection that follows the R wave is called a Q wave.

Answer 14

B False

Question 15

15 Heart rhythm are classified as either regular or irregular period

Answer 15

A True