A nurse is preparing to administer ampicillin 150mg IM to an infant. Available is ampicillin injection 250mg/mL. How many mL should the nurse administer? Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.
The Correct Answer is ["0.6"]
Given:
Prescribed dose: 150 mg of ampicillin
Available concentration: 250 mg/mL
Steps to solve:
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
250 mg/mL = 150 mg/X mL
Cross-multiplying gives us:
250 mg x X mL = 150 mg x 1 mL
Simplifying:
250X = 150
Solving for X:
X = 150 / 250 = 0.6 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.75"]
Explanation
Given:
Prescribed dose: 75 mg of enoxaparin
Available concentration: 100 mg/mL
Steps to solve:
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
100 mg/mL = 75 mg/X mL
Cross-multiplying gives us:
100 mg x X mL = 75 mg x 1 mL
Simplifying:
100X = 75
Solving for X:
X = 75 / 100 = 0.75 mL
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
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