Available is exenatide 250 mcg/mL. How many mL should the nurse administer?
(Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.04"]
Step 1 is to determine the amount of medication in 1 mL. This is calculated by dividing the total available medication (250 mcg) by the total volume (1 mL):
250 mcg ÷ 1 mL = 250 mcg/mL
Step 2 is to determine how many mL are needed to obtain 10 mcg. This is done by dividing the required dose (10 mcg) by the concentration (250 mcg/mL):
10 mcg ÷ 250 mcg/mL = 0.04 mL
Thus, the correct amount to administer is 0.04 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is D
Explanation
Choice A rationale:
Meloxicam 15 mg PO daily is a standard dose for treating osteoarthritis and rheumatoid arthritis.
Choice B rationale:
Regular insulin 8 units subcutaneous before meals is a typical dose for managing blood glucose levels in diabetes.
Choice C rationale:
Docusate sodium 200 mg PO at bedtime is a common dose for preventing constipation.
Choice D rationale:
Fentanyl 25 mcg/hr transdermal patch is a potent opioid, and the dose should be carefully monitored. If the client has not been on opioid therapy, this dose might be too high.
Correct Answer is ["56"]
Explanation
Step 1 is to calculate the total volume to be infused in minutes. This is done by multiplying the total volume (2000 mL) by the drop factor (20 gtt/mL), and then dividing by the total time (12 hr × 60 min/hr). So, (2000 mL × 20 gtt/mL) ÷ (12 hr × 60 min/hr) = 55.56 gtt/min, which rounds to 56 gtt/min.
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