EKG and Cardiovascular Testing

Front

A medical assistant is preparing a patient who has shortness of breath for an EKG. What position should the MA place the patient? Options: Prone, Semi-Fowler's, Supine, Sims'

Back

Semi-Fowler's

Front

A medical assistant is preparing a patient for an EKG. What instructions should the MA provide?

Back

Remove all clothing from the waist up.

Front

Which of the following is true of limb leads and electrodes?
Limb leads are unipolar.
Leads V1 through V6 are limb leads.
Limb leads are typically placed on fleshy areas of the skin.
The left leg lead wire serves as the ground.

Back

Limb leads are typically placed on fleshy areas of the skin.

Front

When calibrating an EKG machine, what is the standard speed of recording? Options: 25 mm/second, 50 mm/second, 10 mm/second, 5 mm/second

Back

25 mm/second

Front

In which location should the V4 lead be placed? Options: 5th intercostal space at the anterior axillary line, 5th intercostal space at the midaxillary line, Midway between V3 and V5, 5th intercostal space at the midclavicular line

Back

5th intercostal space at the midclavicular line

Front

When performing an EKG, you notice a wandering baseline throughout the tracing. What issue could have resulted in this occurrence?

Back

The electrode pads were defective or poorly attached

Front

The MA notices rhythmic, sharp spikes throughout an EKG tracing. Which artifact is occurring? Options: Wandering baseline, Interrupted baseline, Interference, Somatic tremor

Back

Interference

Front

What is the ratio of applied leads to recorded lead for a standard EKG machine?

Back

10:12

Front

When performing an EKB, a medical assistant notices a widened QRS complex on the patient's EKG strip. Which of the following is a possible cause of this type of artifact? Atrial fibrillation, Bradycardia, Sinus dysrhythmia, Premature ventricular contraction

Back

Premature ventricular contraction

Front

Which of the following is a state of cellular rest and is represented by a flatline on an EKG strip? Myocardial infarction, Polarization, Premature atrial contraction, Somatic tremor

Back

Polarization