NCLEX-PN

Category - Pharmacological Therapies

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A physician orders 1500 mL of normal saline solution to be infused for 10 hours. The drop factor is set at 15 drops per 1 mL. The nurse assigned to monitor the infusion determines that the flow rate is correct if which value is obtained during the assessment?

23 drops
31 drops
38 drops
47 drops

Explanation

Answer: C - To obtain the number of drops per minute, use the IV flow rate formula:

Total volume x drop factor = drops per minute
Time in minutes

1500 mL x 15 gtts/mL = 22500 gtts = 37.5
10 hrs x 60 min/hr 600 min

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