If a 2-hour infusion is conducted with a rate of 150 mL/h and a drop factor of 60 gtt/mL, how many total drops are delivered?

If a 2-hour infusion is conducted with a rate of 150 mL/h and a drop factor of 60 gtt/mL, how many total drops are delivered?

• A. 16000
• B. 18000
• C. 20000
• D. 17000

Answer: (B)

The main idea is to convert the infusion rate into total volume over the infusion time, then translate that volume into drops using the drop factor. First, find the total volume delivered: 150 mL/h × 2 h = 300 mL. The drop factor is 60 drops per milliliter, so total drops = 300 mL × 60 drops/mL = 18,000 drops. Therefore, 18,000 drops are delivered.

The main idea is to convert the infusion rate into total volume over the infusion time, then translate that volume into drops using the drop factor.

First, find the total volume delivered: 150 mL/h × 2 h = 300 mL. The drop factor is 60 drops per milliliter, so total drops = 300 mL × 60 drops/mL = 18,000 drops.

Therefore, 18,000 drops are delivered.