A nurse is preparing to administer haloperidol 15 mg IM to a client. The amount available is haloperidol 10 mg/mL. How many mL should the nurse admit Round to the nearest tenths place. Enter numeric value only (numbers and decimal points only, no commas or labels)
The Correct Answer is ["1.5"]
Identify the information given:
Prescribed dose: 15 mg of haloperidol
Available concentration: 10 mg/mL
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
10 mg/mL = 15 mg/X mL
Cross-multiplying gives us:
10 mg x X mL = 15 mg x 1 mL
Simplifying:
10X = 15
Solving for X:
X = 15 / 10 = 1.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.8"]
Explanation
Identify the formula for volume to administer:
Volume (mL)=Dose ordered (mg)/Available concentration (mg/mL)
Determine the concentration (mg/mL):
Available concentration=400 mg/2 mL=200 mg/mL
Substitute the given values into the formula:
Dose ordered = 150 mg
Concentration = 200 mg/mL
Volume=150/200=0.75 mL
Round to the nearest tenth if necessary:
0.75mL rounds to 0.8 mL
Correct Answer is ["1.3"]
Explanation
Identify the given information:
Prescribed dose: 12.5 mg of diphenhydramine elixir
Available concentration: 50 mg/5 mL
Determine the volume to be administered:
We can set up a proportion to solve for the unknown volume (X):
50 mg/5 mL = 12.5 mg/X mL
Cross-multiplying gives us:
50 mg x X mL = 12.5 mg x 5 mL
Simplifying:
50X = 62.5
Solving for X:
X = 62.5 / 50 = 1.25 mL
Round off to the nearest tenth:
1.25 rounds off to 1.3 mL
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