A nurse is assisting with the care of a client who is pregnant and has a prescription for dextrose 5% in 0.9% sodium chloride 250 mL IV to infuse over 4 hr. The nurse should ensure that the IV pump is set to administer 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 ["63"]
Given:
Total volume: 250 mL
Time: 4 hours
Steps to solve:
Determine the flow rate:
Set up a proportion to solve for the unknown flow rate (X):
250 mL/4 hr = X mL/1 hr
Cross-multiplying gives us:
250 mL x 1 hr = 4 hr x X mL
Simplifying:
250 = 4X
Solving for X:
X = 250 / 4 = 62.5 mL/hr
Round to the nearest whole number:
63 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["400"]
Explanation
Given:
Total volume: 100 mL
Time: 15 minutes
Steps to solve:
Determine the flow rate in mL/min:
Set up a proportion to solve for the unknown flow rate (X):
100 mL/15 min = X mL/1 min
Cross-multiplying gives us:
100 mL x 1 min = 15 min x X mL
Simplifying:
100 = 15X
Solving for X:
X = 100 / 15 = 6.67 mL/min
Convert to mL/hr:
6.67 mL/min x 60 min/hr = 400 mL/hr
Correct Answer is ["0.67"]
Explanation
Given:
Prescribed dose: 5,000 units of heparin
Available concentration: 7,500 units/mL
Steps to solve:
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
7,500 units/mL = 5,000 units/X mL
Cross-multiplying gives us:
7,500 units x X mL = 5,000 units x 1 mL
Simplifying:
7,500X = 5,000
Solving for X:
X = 5,000 / 7,500 = 0.67 mL
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