A physician orders 1000 mL of normal saline to infuse at a rate of 50 mL/hr. The nurse plans on hanging a new bag at what time?
a. 2 hours
b. 5 hours
c. 10 hours
d. 20 hours
ANS: D
It will take 20 hours for a liter (1000 mL) of fluid to infuse at a rate of 50 mL/hr. After 2 hours, only 100 mL would have infused. After 5 hours, only 250 mL would have infused. At 10 hours, 500 mL would have infused.
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