Deck 5: The Electrocardiogram

Question 1

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

A) graph
B) middle
C) central
D) isoelectric

Answer 1

D

Question 2

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

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 2

B

Question 3

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

A) 15
B) 25
C) 50
D) 75

Answer 3

B

Question 4

Graphic representation of the electrical activity of the heart is recorded in the form of a(n):

A) angiogram.
B) sonogram.
C) electrocardiogram.
D) ultrasound.

Question 5

Which leads are bipolar?

A) v1, v2, v3
B) aVL, aVF, V6
C) v4, v5, v6
D) leads I, II, III

Question 6

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

A) P
B) Q
C) R
D) S
E) T

Question 7

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

A) electrical
B) mechanical
C) universal
D) action

Question 8

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

A) impulse
B) baseline
C) system interval
D) interval

Question 9

Leads that have one positive and one negative electrode are:

A) biphasic.
B) bipolar.
C) unipolar.
D) multipolar.

Question 10

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:

A) 0.10 seconds.
B) 0.20 seconds.
C) 0.4 seconds.
D) 0.12 seconds.

Question 11

The chest leads are also called ________ leads.

A) precordial
B) bipolar
C) augmented
D) standard

Question 12

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

A) 0.04 seconds.
B) 0.08 seconds.
C) 0.12 seconds.
D) 0.20 seconds.

Question 13

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

A) rhythm strip.
B) electrode.
C) lead.
D) view.

Question 14

Which leads are the standard leads?

A) aVR, aVL, aVF
B) I, II, III
C) v1, v2, v3
D) v4, v5, v6

Question 15

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

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

Question 16

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

A) heart rate.
B) rhythm.
C) regularity.
D) cardiac output.

Question 17

In the standard lead II, the current flows:

A) positive to negative.
B) negative to ground.
C) negative to positive.
D) positive to ground.

Question 18

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

A) ST interval.
B) QRS interval.
C) PR interval.
D) J interval.

Question 19

5 small squares are equal to:

A) 2.5 sec.
B) 5 sec.
C) 0.20 sec.
D) 25 sec

Question 20

An adhesive pad that contains conductive gel and is designed to be attached to the patient's skin is a(n):

A) strip.
B) electrode.
C) stimulator.
D) lead.

Question 21

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

A) intense
B) resting
C) working
D) moving

Question 22

Normally, one complete cardiac cycle is represented by the:

A) R on T pattern.
B) QRS pattern.
C) PR pattern.
D) PQRST pattern.