Final answer:
The rate of bretylium infusion per minute is 500 mg/minute.
Step-by-step explanation:
The rate of infusion per minute can be calculated by dividing the total dosage by the total time. In this case, the healthcare provider ordered a bretylium infusion at a rate of 1 mg/minute. Since the bretylium is available in a 500 D5W solution, we need to determine the rate of infusion per minute based on this concentration.
First, we need to convert the concentration from mg/mL to mg/minute. Since there are 500 mL in the solution, the total dosage would be 500 mg. Therefore, the rate of infusion per minute would be 500 mg/minute.