What criteria should the nurse use to determine normal sinus rhythm for a client on a cardiac monitor? Select all that apply.
1. The RR intervals are relatively consistent.
2. One P wave precedes each QRS complex.
3. The ST segment is higher than the PR interval.
4. Four to eight complexes occur in a 6-second strip.
5. The QRS complex ranges from 0.12 to 0.2 seconds.
1
1, 2, 3, 4, 5
2
1 and 2
3
3, 4, 5
4
2, 3, 4