exam 2

Question 1

What are the rules to identifying Sinus Rhythms? HINT: There are 5 rules.

Answer 1

Rate 60-100, regular rhythm, normal upright P wave, Normal PRI 0.12-0.20, a

Question 2

________ is noted by the presence of a spike and wide QRS complexes on the EKG monitor and/or rhythm strip.

Select one:

a. Standardization
b. Release
c. Capture
d. Synchronous

Answer 2

c. Capture

Question 3

The rhythm that occurs when there is an intermittent interruption in the electrical conduction system near or below the AV Junction is:

Select one:

a. first-degree block
b. second-degree block type I.
c. second-degree block type II.
d. third-degree block.

Answer 3

c. second-degree block type II.

Question 4

In the standard lead II, the current flows:

Select one:

a. positive to negative.
b. negative to ground
c. negative to positive
d. positive to ground

Answer 4

a. positive to negative.

Question 5

This rhythm has a PR interval that gets progressively longer until a P wave fails to conduct, resulting in a dropped QRS complex.

Select one:

a. First degree
b. Second degree type I
c. Second degree type II
d. Third degree

Answer 5

b. Second degree type I

Question 6

The distance from the beginning of the P wave to the beginning of the QRS complex is represented by the:

Select one:

a. ST interval.
b. QRS interval
c. PR interval.
d. J interval.

Answer 6

c. PR interval.

Question 7

This rhythm has a complete block at or below the AV node and there is no relationship between the P waves and the QRS complex.

Select one:

a. First degree
b. Second degree type I
c. Second degree type 2
d. Third degree

Answer 7

d. Third degree

Question 8

The electrocardiogram is used to:

Select one:

a. determine pulse rate
b. detect valvular dysfunction
c. Evaluate electrical activity in the heart
d. Determine whether the heart is beating

Answer 8

c. Evaluate electrical activity in the heart.

Question 9

The normal conduction pattern of the heart follows the sequence:

1. SA node
2. Purkinje fibers
3. Bundle of His
4. AV node
5. Bundle branches
6. Internodal pathways

Select one:

a. 1, 2, 3, 5, 6, 4
b. 1, 6, 4, 3, 5, 2
c. 1, 6, 4, 2, 3, 5
d. 6. 1, 5, 4, 3, 2

Answer 9

b. 1, 6, 4, 3, 5, 2 (SA node, Internodal pathways, AV node, Bundle of His, Bundle branches, and Purkinje fibers)

Question 10

A wide QRS complex is determined by a measurement of:

Select one:

a. 0.04 seconds or greater.
b. 0.08 seconds or less
c. 0.12 seconds or greater.
d. 0.11 seconds or less.

Answer 10

c. 0.12 seconds or greater.