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Chapter 16
IV Medications
| Question | Answer |
|---|---|
| An IV order is for 1000 mL of D5W to infuse over 8 hours. What is the infusion rate in mL per hour? | 1000 mL ÷ 8 hr = 125 mL/hr |
| An IV bag contains 1000 mL and is infusing at 125 mL/hr. How much medication (volume) has the patient received after 6 hours? | 125 mL/hr × 6 hr = 750 mL |
| Cefuroxime 1 g is diluted in 50 mL NS to infuse over 30 minutes. What is the infusion rate in mL/hr? | 50 mL in 0.5 hr → 50 mL ÷ 0.5 = 100 mL/hr |
| 1000 mL of lactated Ringer’s is to infuse over 12 hours using tubing with a drop factor of 15 gtt/mL. Calculate the drip rate in gtt/min (round to nearest whole number). | Total minutes = 12 × 60 = 720 min Drip rate = (1000 mL × 15 gtt/mL) ÷ 720 min = 20.83 → 21 gtt/min |
| Hespan 500 mL is ordered over 3 hours with a drop factor of 15 gtt/mL. What is the drip rate in gtt/min? | Total minutes = 3 × 60 = 180 min (500 × 15) ÷ 180 = 41.67 → 42 gtt/min |
| An IVPB of piperacillin in 50 mL NS is to infuse over 20 minutes with 20 gtt/mL tubing. What is the drip rate? | (50 mL × 20 gtt/mL) ÷ 20 min = 50 gtt/min |
| 500 mL NS over 2 hours using 60 gtt/mL microdrip. What is the drip rate? | Total minutes = 120 min (500 × 60) ÷ 120 = 250 gtt/min |
| An IV bag of 1000 mL is infusing at 125 mL/hr. How long will the bag last? | 1000 mL ÷ 125 mL/hr = 8 hours |
Created by:
tomknoah
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