AAMA AAMA Electrocardiography and Diagnostic Testing 2

Question 1

AC interference on an ECG recording appears as:

Accepted Answer

Uniform, rapid spikes at 60 cycles per second

Answer

AC (alternating current) interference appears as uniform 60-cycle-per-second spikes superimposed on the ECG tracing, caused by nearby electrical equipment.

Question 2

Which position is BEST for a patient during a resting 12-lead ECG?

Accepted Answer

Supine (lying flat)

Answer

The patient should lie supine and still to minimize movement artifact and ensure consistent electrode placement and electrical contact.

Question 3

The T wave on an ECG represents:

Accepted Answer

Ventricular repolarization

Answer

The T wave represents ventricular repolarization, the electrical recovery phase of the ventricles after contraction.

Question 4

Which spirometry measurement represents the maximum amount of air forcefully exhaled after a maximum inhalation?

Accepted Answer

Forced vital capacity (FVC)

Answer

Forced vital capacity (FVC) is the total volume of air exhaled as forcefully and completely as possible after a maximum inhalation.

Question 5

Before performing a spirometry test, the patient should be instructed to:

Accepted Answer

Avoid smoking for at least 4 hours and bronchodilators as directed

Answer

Patients should avoid smoking for at least 4 hours before spirometry and withhold bronchodilator medications as directed to ensure accurate baseline measurements.

(AAMA) American Association of Medical Assistants Certified Practice Test

(AAMA) American Association of Medical Assistants Certified Practice Test

AAMA AAMA Electrocardiography and Diagnostic Testing 2