What is the burette pump setting (in mL/h) to administer 70 mL of fluid containing 1.2 g of penicillin in 25 minutes?

What is the burette pump setting (in mL/h) to administer 70 mL of fluid containing 1.2 g of penicillin in 25 minutes?

• A. 70 mL/h
• B. 168 mL/h
• C. 140 mL/h
• D. 200 mL/h

Answer: (B)

Flow rate is determined by how much volume you deliver per unit time. Here you need 70 mL in 25 minutes. Convert time to hours: 25 minutes is 25/60 hours = 0.4167 hours. The required rate is 70 mL ÷ 0.4167 h ≈ 168 mL/h. Set the burette pump to about 168 mL per hour. The amount of penicillin (1.2 g) doesn’t change the pump setting for this volume-to-time delivery; it would matter only if you were calculating dose per hour (g/h) or adjusting concentration.

Flow rate is determined by how much volume you deliver per unit time. Here you need 70 mL in 25 minutes. Convert time to hours: 25 minutes is 25/60 hours = 0.4167 hours. The required rate is 70 mL ÷ 0.4167 h ≈ 168 mL/h. Set the burette pump to about 168 mL per hour.

The amount of penicillin (1.2 g) doesn’t change the pump setting for this volume-to-time delivery; it would matter only if you were calculating dose per hour (g/h) or adjusting concentration.