ECG Placement Techniques, Recording, and Interpretation

Where should the V4 electrode be placed on the body?

A. left midclavicular line, 5th intercostal space

B. right midclavicular line, 5th intercostal space

C. left midclavicular line, 4th intercostal space

D. right midclavicular line, 4th intercoastal space

left midclavicular line, 5th intercostal space

Which of the following are appropriate actions for the ECG technician to take when placing electrodes on a patient's skin for a 24-hour Holter monitor? (Select the three (3) correct answers.)

A. Avoid scars and incisions.

B. Place tape directly over electrodes to help secure them to the patient's skin.

C. Tape the lead wires to the patient's skin.

D. Abrade the skin with an alcohol pad or dry 4x4.

E. Place limb leads with tabs facing up.

Avoid scars and incisions, Tape the lead wires to the patient's skin, Abrade the skin with an alcohol pad or dry 4x4

What is the approximate amount of time for the QRS complex to record on an ECG?

A. 0.06-0.10 seconds

B. 0.04-0.08 seconds

C. 0.04-0.12 seconds

D. 0.04-0.06 seconds

0.06-0.10 seconds

The ECG technician is performing an ECG on a patient who is obese, and wandering baseline is present. Which of the actions should the technician take? (Select the two (2) correct answers.)

A. Ensure that the examination table is not touching the wall.

B. Ensure the patient is not touching the frame or side rail.

C. Ensure that new electrodes and clean clips are used.

D. Ensure good skin preparation.

E. Ensure the patient's arms are folded over the chest.

Ensure that new electrodes and clean clips are used, Ensure good skin preparation

A patient with Parkinson's comes in for an ECG with noticeably severe tremors. Which of the following should the medical assistant do to ensure a proper reading?

A. Ask the patient to remain calm.

B. Have the patient slide their hands under their buttocks.

C. Have the patient grasp the side of the table.

D. Move the patient into the semi-fowlers position to ease breathing.

Have the patient slide their hands under their buttocks.

What is the abbreviation for electroencephalogram?

A. EEG

B. EKG

C. ECG

D. ENT

EEG

Which of the following diagnostic procedures uses ultrasound to display an image of the structure of the heart?

A. electroencephalogram

B. angiogram

C. echocardiogram

D. electrocardiogram

echocardiogram

After validating an ECG order, collecting all supplies, and ensuring the machine is in proper working order, the technician's next action should be to

A. explain the procedure.

B. provide for privacy.

C. apply the electrodes.

D. identify the patient.

identify the patient

Which of the following actions by the ECG technician are likely to be performed prior to exercise stress testing? (Select the four (4) correct answers.)

A. Inform the patient of expectations during the testing.

B. Explain the symptoms to report if experienced during testing.

C. Obtain the patient's medical history and current medications.

D. Observe and monitor the patient, documenting symptoms in the chart.

E. Have a crash cart with defibrillator close at hand.

Inform the patient of expectations during the testing, Explain the symptoms to report if experienced during testing, Obtain the patient's medical history and current medications, Have a crash cart with defibrillator close at hand

The P wave of an ECG indicates

A. atrial contraction.

B. the heart at rest.

C. ventricular contraction.

D. ventricular relaxation.

atrial contraction

Which of the following rhythms identified on an ECG prompts the medical assistant to notify the provider immediately?

A. sinus bradycardia

B. premature ventricular contraction

C. ventricular fibrillation

D. sinus tachycardia

ventricular fibrillation

Which of the following indicates a normal sinus rhythm?

A. PR interval of 0.22 second, QRS complex of 0.10 second, QT interval of 0.40 second and HR of 78

B. PR interval of 0.22 second, QRS complex of 0.12 second, QT interval of 0.42 second and HR of 72

C. PR interval of 0.14 second, QRS complex of 0.10 second, QT interval of 0.40 second and HR of 78

D. PR interval of 0.14 second, QRS complex of 0.16 second, QT interval of 0.42 second and HR of 72

PR interval of 0.14 second, QRS complex of 0.10 second, QT interval of 0.40 second and HR of 78