Order: 1500 ml D5W to be given IV over 10 hours
Drop Factor: 15gtt/ml
How many drops per minute?
38 gtt/min
40 gtt/min
150 gtt/min
6 gtt/min
The Correct Answer is A
Total Volume: 1500 mL
Total Time: 10 hours
Convert the total infusion time from hours to minutes.
Total time (min) = 10 hours x 60 minutes/hour
= 600 minutes.
Calculate the infusion rate in drops per minute (gtt/min).
Drop factor: 15 gtt/mL
Rate (gtt/min) = (Total volume x Drop factor) / Total time
= (1500 mL x 15 gtt/mL) / 600 min
= 22500 / 600
= 37.5 gtt/min.
Round the answer to the nearest whole number (standard for gtt/min) and match the option.
= 38 gtt/min
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Desired dose = 0.06 mg.
Available concentration = 0.05 mg per 1 mL.
Calculate the volume to administer in milliliters (mL).
Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)
= 0.06 mg / (0.05 mg / 1 mL)
= 0.06 mg / 0.05 mg/mL
= 1.2 mL.
Correct Answer is B
Explanation
A. Administer 8 mg IV: Giving the highest dose may not be appropriate initially. Since the patient is reporting moderate pain (6/10), the nurse should start with the lowest effective dose within the prescribed range before escalating.
B. Administer 6 mg IV: This is the safest action. Starting with the lowest ordered dose provides pain relief while minimizing the risk of adverse effects such as respiratory depression. The nurse can reassess pain and administer more later if needed.
C. Administer 7 mg IV: While mathematically between 6 and 8, the most clinically prudent and common practice is to use the low or high end of the ordered range, reserving the low dose for initial treatment.
D. Contact the Physician: There is no need to contact the physician because the order is clear, and the nurse can proceed with the lowest dose in the range to manage the patient’s pain safely.
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