Types of Insulin

The nurse is caring for a client taking vancomycin. The nurse anticipates drawing a peak and trough on this client. Which statement regarding peak and trough levels is correct?
- 1. The peak is drawn 1 hour after the infusion, and the trough is drawn right before the next scheduled dose.
- 2. The peak is drawn 2 hours after the infusion, and the trough is drawn 1 hour before the next scheduled dose.
- 3. The peak should be drawn immediately after infusion, and the trough is drawn right before the next scheduled dose.
- 4. The peak should be drawn 30 minutes before the next scheduled dose, and the trough drawn immediately after the infusion.

NCLEX-RN QBank Subject: Types of Insulin