A continuous IV is infusing at the rate of 30 gtt/min. The drop factor is 10 gtt/mL. How many milliliters will infuse in 1 1/2 hours?
1. 7.5 mL
2. 45 mL
3. 450 mL
4. 270 mL
4
Global Rationale: 30 gtt/min × mL/10 gtt × 60 min/h = 180 mL/h.
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