A nurse is preparing to administer 0.9% sodium chloride 5 L IV to infuse over 6 hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["250"]
Calculation:
Convert the total volume to milliliters:
Total volume: 1.5 L
Conversion: 1.5 L × 1000 mL/L = 1500 mL
Determine the total infusion time in hours:
Infusion time: 6 hours
Calculate the IV pump flow rate in mL/hr:
Formula: Flow rate (mL/hr) = Total volume (mL) / Total time (hours)
= 1500 mL / 6 hours
= 250 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The medication can be used for IV administration: The label clearly states that the medication is for intramuscular or intravenous use only. This means the medication is indeed suitable for IV administration.
B. The medication can be used for up to 14 days after reconstitution: The label specifically mentions that the reconstituted medication should be used within 48 hours. This is less than 14 days.
C. The medication should be reconstituted with 0.9% sodium chloride solution: The label specifies that the medication should be reconstituted with bacteriostatic water for injection, not 0.9% sodium chloride solution.
D. The vial contains a single dose: The label indicates that this is a multiple dose vial, meaning it contains more than one dose.
Correct Answer is ["3"]
Explanation
Calculation:
Calculate the desired dose of nitroglycerin per hour in micrograms:
Ordered dose: 10 mcg/min
Conversion: 10 mcg/min × 60 min/hr = 600 mcg/hr
Determine the concentration of the nitroglycerin solution in micrograms per milliliter:
Total nitroglycerin: 50 mg
Convert milligrams to micrograms: 50 mg × 1000 mcg/mg = 50000 mcg
Total volume of solution: 250 mL
Formula: Concentration (mcg/mL) = Total micrograms / Total mL
= 50000 mcg / 250 mL
= 200 mcg/mL
Calculate the IV pump flow rate in mL/hr:
Formula: Flow rate (mL/hr) = Desired dose per hour (mcg/hr) / Concentration (mcg/mL)
= 600 mcg/hr / 200 mcg/mL
= 3 mL/hr
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