The nurse reviews the characteristics of a normal QRS complex on a patient's cardiac rhythm strip. What should the nurse identify as characteristics of this complex? Select all that apply.

Question

Quizplus · Accepted Answer

1. The Q wave is the first downward deflection after the P wave.
2. The R wave is the first upward deflection in the QRS complex.
3. The S wave is the downward deflection following the R wave.
4. The QRS complex normally measures less than 0.12 second, or less than three small boxes.
5. The ST segment begins at the end of the QRS complex and ends at the beginning of the T wave.

The Nurse Reviews the Characteristics of a Normal QRS Complex