Deck 3: Community-Based Nursing Practice

Question 1

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

Answer 1

True

Question 2

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

Answer 2

True

Question 3

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

Answer 3

True

Question 4

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

Question 5

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

Question 6

Lead MCL₁ views the lateral wall of the left ventricle.

Question 7

Proper ECG machine calibration is critical when analyzing ST segments.

Question 8

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

Question 9

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:

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 10

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:

A) diagnostic quality.
B) monitor quality.

Question 11

Standard calibration for an ECG recording is:

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

Question 12

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

Question 13

List the three goals of 12-lead ECG acquisition.

Question 14

What is artifact on an ECG tracing?

Question 15

When should normal ECG calibration settings be changed?

Question 16

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