The Electrocardiogram Quiz

Question 1

Darker lines further divide EKG graph paper every fifth square. Each large square measures 5 mm in height and width and represents a time interval of:

Select one:

a. 0.10 seconds
b. 0.20 seconds.
c. 0.4 seconds.
d. 0.12 seconds.

Answer 1

b. 0.20

Question 2

The T wave is often referred to as the ________ phase of the cardiac cycle.

Select one:

a. intense
b. resting
c. working
d. moving

Answer 2

b. resting

Question 3

An adhesive pad that contains conductive gel and is designed to be attached to the patient’s skin is aNo:

Select one:

a. strip
b. electrode
c. stimulator
d. lead.

Answer 3

b. electrode

Question 4

All of the following information can be obtained from the EKG strip analysis EXCEPT:

Select one:

a. heart rate
b. rhythm.
c. regularity.
d. cardiac output.

Answer 4

d. cardiac output.

Question 5

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 5

a. positive to negative

Question 6

The ________ is the straight line seen on an EKG that represents the beginning and the end point of all waves

Select one:

a. impulse
b. baseline
c. system interval
d. interval

Answer 6

b. baseline

Question 7

On the EKG graph paper, time is measured on the horizontal plane

Select one:

a. True
b. False

Answer 7

a. True

Question 8

The chest leads are also called ________ leads.

Select one:

a. precordial
b. bipolar
c. augmented
d. standard

Answer 8

b. bipolar

Question 9

EKG paper is divided into small squares. Each is 1 mm in height and width and represents a time interval of:

Select one:

a. 0.04 seconds.
b. 0.08 seconds.
c. 0.12 seconds.
d. 0.20 seconds.

Answer 9

a. 0.04

Question 10

The printed record of the electrical activity of the heart is called a:

Select one:

a. rhythm strip.
b. electrode.
c. lead.
d. view.

Answer 10

a. rhythm strip.

Question 11

The baseline on an EKG strip is also referred to as a ________ line.

Select one:

a. graph
b. middle
c. central
d. isoelectric

Answer 11

d. isoelectric

Question 12

The wave that represents depolarization of both atria is the ________ wave.

Select one:

a. P
b. Q
c. R
d. S

Answer 12

a. P

Question 13

EKG paper leaves the machine at a constant speed of ________ millimeters per second

Select one:

a. 15
b. 25
c. 50 Incorrect
d. 75

Answer 13

b. 25

Question 14

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 14

c. PR interval.

Question 15

In Einthoven’s triangle, which side of the triangle is formed by lead II?

Select one:

a. From right arm to left leg
b. From right arm to left arm
c. From left arm to left leg
d. From left leg to right leg

Answer 15

a. From right arm to left leg

Question 16

Which leads are the standard leads?

Select one:

a. aVR, aVL, aVF
b. I, II, III
c. v1, v2, v3
d. v4, v5, v6

Answer 16

b. I, II, III

Question 17

EKG is a graphic tracing of the ________ activity of the heart.

Select one:

a. electrical
b. mechanical
c. universal
d. action

Answer 17

a. electrical

Question 18

Normally, one complete cardiac cycle is represented by the:

Select one:

a. R on T pattern.
b. QRS pattern.
c. PR pattern.
d. PQRST pattern.

Answer 18

d. PQRST pattern

Question 19

Which side of Einthoven’s triangle is formed by lead I?

Select one:

a. From right arm to left leg
b. From right arm to left arm
c. From left arm to left leg
d. From left leg to right leg

Answer 19

b. From right arm to left arm

Question 20

Graphic representation of the electrical activity of the heart is recorded in the form of an:

Select one:

a. angiogram
b. sonogram
c. electrocardiogram
d. ultrasound

Answer 20

c. electrocardiogram

Question 21

Which leads are bipolar?

Select one:

a. v1, v2, v3
b. aVL, aVF, V6
c. v4, v5, v6
d. leads I, II, III

Answer 21

d. leads I, II, III

Question 22

Leads that have one positive and one negative electrode are:

Select one:

a. biphasic.
b. bipolar.
c. unipolar
d. multipolar.

Answer 22

b. bipolar.

Question 23

5 small squares are equal to:

Select one:

a. 2.5 seconds
b. 5 seconds
c. 0.20 seconds
d. 25 seconds

Answer 23

c. 0.20