Ch. 46: Cardiology Procedures Pretest

A heated pen-like instrument that produces a printed representation on the ECGG paper is known as a/an:

• galvanometer.

• stylus.

• amplifier.

• electrode.

Each large square on the ECG paper measures 5 mm by 5 mm and represents ____ seconds.

• 0.2

• 0.04

• 0.1

• 1.0

Which of the following wave(s) on the graph paper represents the repolarization of the ventricles or the time of recovery before another contraction?

• P

• QRS

• ST

• T

What can you do with the sensitivity dial if the ECG tracing is too small?

• Turn down to 1

• Turn down to 1/2

• Turn up to 5

• Turn up to 2

The routine ECG consists of how many leads?

• 12

• 10

• 6

• 4

The augmented leads are also known as:

• leads I, II, and III.

• chest leads.

• aVL, aVR, aVF.

• precordial leads.

What kind of interference is caused by improperly applied electrodes?

• Somatic Tremor

• Wandering baseline

• Interrupted baseline

• AC interference

The following is a diagnostic tool that tests the structure and function of the heart through the use of sound waves reflected through the heart.

• Defibrillator

• Holter monitor

• Echocardiography

• Treadmill