A nurse is preparing to administer 0.9% sodium chloride 500 mL IV to infuse over 45 min. 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 It applies. Do not use a trailing zero.)
The Correct Answer is ["667"]
Understanding the Problem
Volume: 500 mL of 0.9% sodium chloride
Infusion Time: 45 minutes
Desired Rate: mL/hr
Step 1: Convert Infusion Time to Hours
Minutes in an Hour: 60 minutes
Infusion Time in Hours: 45 minutes / 60 minutes/hour = 0.75 hours
Step 2: Calculate the Infusion Rate in mL/hr
Volume: 500 mL
Infusion Time: 0.75 hours
Infusion Rate: 500 mL / 0.75 hours = 666.666... mL/hr
Step 3: Round to the Nearest Whole Number
The calculated rate is 666.666. mL/hr.
Rounded to the nearest whole number: 667 mL/hr
Answer: 667 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. A total 62.5 mL is available in this dose: The label states that each mL of the reconstituted solution contains 62.5 mg of methylprednisolone. However, the total volume available depends on the reconstitution process, and this option does not directly match the provided information.
B. This medication can be administered IM only: The label clearly states that the medication can be given both intramuscularly (IM) and intravenously (IV), making this option incorrect.
C. This medication should be protected from light: The label explicitly instructs to protect the medication from light, confirming this as the correct answer.
D. The medication is effective for 7 days after reconstitution: The label specifies that the medication should be used within 48 hours after reconstitution, not 7 days.
Correct Answer is ["0.3"]
Explanation
Calculate the Total Daily Dose:
Dose: 40 mg/kg/day
Weight: 5 kg
Total Daily Dose: 40 mg/kg/day x 5 kg = 200 mg/day
Calculate the Dose Per Administration:
The dose is divided equally every 12 hours, meaning twice a day.
Dose Per Administration: 200 mg/day / 2 doses/day = 100 mg/dose
Calculate the Volume to Administer:
Available Concentration: 330 mg/mL
Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL)
Volume (mL) = 100 mg / 330 mg/mL
Volume (mL) ≈ 0.303 mL
Round to the Nearest Tenth:
0.3 mL
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