Question 1

To clearly see the signal produced by the heart and look for signs of possible infarction, the 12-lead ECG's frequency response should be set to:

Accepted Answer

A)  diagnostic quality. 
B)  monitor quality. A

Question 2

List two natural barriers that can keep ECG electrode gel from penetrating the skin.

Accepted Answer

Hair and skin oil are two natural barriers that can keep ECG electrode gel from penetrating the skin.

Question 3

When the baseline on an ECG wanders, ST segments may appear elevated when in fact they are not.

Accepted Answer

A) True 
 B)False  True

Question 4

What is artifact on an ECG tracing?

Accepted Answer

The answer of What is artifact on an ECG tracing?...

Question 5

The maximum number of leads that a cardiac monitor can obtain is limited by the number of cables attached to the monitor.

Accepted Answer

A) True 
 B)False

Question 6

Standard calibration for an ECG recording is:

Accepted Answer

A)  0.1 mV = 10 mm. 
B)  0.5 mV = 10 mm. 
C)  1 mV = 10 mm. 
D)  5 mV = 1 mm.

Question 7

Proper ECG machine calibration is critical when analyzing ST segments.

Accepted Answer

A) True 
 B)False

Question 8

To use ST-segment elevation as an indicator of infarction, the monitor must be set to standard calibration, and in diagnostic quality.

Accepted Answer

A) True 
 B)False

Question 9

The spectrum in which an ECG can accurately reproduce the signals it is sensing is referred to as the _____________ _____________ .

Accepted Answer

The answer of The spectrum in which an ECG can...

Question 10

All ECG tracings should be recorded in standard calibration and the calibration pulse should be included in the tracing.

Accepted Answer

A) True 
 B)False

Question 11

Proper preparation of the patient's skin and evaluation of the equipment (electrodes, wires) before use can minimize the problems associated with artifact.

Accepted Answer

A) True 
 B)False

Question 12

Lead MCL1 views the lateral wall of the left ventricle.

Accepted Answer

A) True 
 B)False

Question 13

To enhance the quality of the ECGs electrical signal, the patient's skin should be prepared before applying the electrodes. Skin oil and dead skin cells should be removed by:

Accepted Answer

A)  applying alcohol and slowly rubbing the skin surface with fine sandpaper. 
B)  briskly rubbing the skin with alcohol and then using electric clippers. 
C)  briskly rubbing the skin with alcohol. 
D)  briskly rubbing the skin with the abrasive area on the disposable backing of the electrode or a gauze pad.

Question 14

When should normal ECG calibration settings be changed?

Accepted Answer

The answer of When should normal ECG calibration settings be...

Question 15

When viewing a standard 12-lead ECG, waveforms that are aligned vertically represent a simultaneous recording of the same beat.

Accepted Answer

A) True 
 B)False

Question 16

List the three goals of 12-lead ECG acquisition.

Accepted Answer

The answer of List the three goals of 12-lead ECG...

Exam 3: Community-Based Nursing Practice

To clearly see the signal produced by the heart and look for signs of possible infarction, the 12-lead ECG's frequency response should be set to:

List two natural barriers that can keep ECG electrode gel from penetrating the skin.

When the baseline on an ECG wanders, ST segments may appear elevated when in fact they are not.

What is artifact on an ECG tracing?

The maximum number of leads that a cardiac monitor can obtain is limited by the number of cables attached to the monitor.

Standard calibration for an ECG recording is:

Proper ECG machine calibration is critical when analyzing ST segments.

To use ST-segment elevation as an indicator of infarction, the monitor must be set to standard calibration, and in diagnostic quality.

The spectrum in which an ECG can accurately reproduce the signals it is sensing is referred to as the _ _ .

All ECG tracings should be recorded in standard calibration and the calibration pulse should be included in the tracing.

Proper preparation of the patient's skin and evaluation of the equipment (electrodes, wires) before use can minimize the problems associated with artifact.

Lead MCL₁ views the lateral wall of the left ventricle.

To enhance the quality of the ECGs electrical signal, the patient's skin should be prepared before applying the electrodes. Skin oil and dead skin cells should be removed by:

When should normal ECG calibration settings be changed?

When viewing a standard 12-lead ECG, waveforms that are aligned vertically represent a simultaneous recording of the same beat.

List the three goals of 12-lead ECG acquisition.