NURS 5337 MODULE 5 EKG QUIZ | QUESTIONS AND ANSWERS | 2026 UPDATE | 100% CORRECT.

NURS 5337 MODULE 5 EKG QUIZ | QUESTIONS AND ANSWERS | 2026
UPDATE | 100% CORRECT.

1. On a 12 lead ECG, the P waves represents:
Atrial depolarization

2. T wave inversion eight hours after a myocardial infarction may
indicate:
Ischemia

3. Left ventricular hypertrophy is is diagnosed by measuring R waves in
leads:
V5 and V6

4. The ECG tech seems to be in a big rush to get the patient's ECG
completed. What common placement error can cause the wave
pattern to look like the patient is having a myocardial infarction when
they are not?
(incorrect) V1 and V2 are not placed in the 4th
intercostal space correctly.

5. The NP notes tall peaked T waves when reviewing a patient's ECG.
The most likely cause of this phenomenon is:
Hyperkalemia

6. To differentiate between left bundle branch block and anterior wall
infarction, the NP considers:
QRS duration and T wave inversion

7. Axis is determined by the position of the QRS in leads:
Lead I and aVf

8. Select the correct location for the placement of precordial lead V1.
4th intercostal space to the right of the sternum

9. The most common cause of acute MI is
Coronary thrombosis

10. What is the normal, dominant pacemaker of the heart?
SA node