Question

A nurse is preparing to administer tobramycin 100 mg via intermittent IV bolus. Available is tobramycin 100 mg in 0.9% sodium chloride 100 mL. The nurse is planning to administer the medication over 30 min. The nurse should set the pump to deliver how many milliliters per hour? (Round the answer to the nearest whole number.)

a. 90 mL/hour
b. 120 mL/hour
c. 150 mL/hour
d. 200 mL/hour

Answer 1

To calculate the IV pump rate for administering 100 mL of tobramycin over 30 minutes, the rate is determined to be 200 mL/hour. Therefore, the nurse should set the pump to deliver 200 mL/hour.

Step-by-step explanation:

To calculate the pump rate, we first need to know the total volume to be administered and the time over which it will be administered. In this case, the total volume of the tobramycin solution is 100mL and it will be administered over 30 minutes . To find the rate in milliliters per hour (mL/hour), we multiply the volume by 2 (since 30 minutes is half an hour), which is the same as administering 100 mL over 1 hour.

Calculations:

• Total volume = 100 mL
• Time = 30 minutes = 0.5 hours (since 30 minutes is half of an hour)
• Rate (mL/hour) = Total volume / Time (in hours)
• Rate (mL/hour) = 100 mL / 0.5 hours = 200 mL/hour

Therefore, the nurse should set the pump to deliver 200 mL/hour .