A nurse is preparing to administer diphenhydramine 40mg IM to a client who has allergies. Available is diphenhydramine injection 50mg/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 ["0.8"]
Given:
Prescribed dose: 40 mg of diphenhydramine
Available concentration: 50 mg/mL
Steps to solve:
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
50 mg/mL = 40 mg/X mL
Cross-multiplying gives us:
50 mg x X mL = 40 mg x 1 mL
Simplifying:
50X = 40
Solving for X:
X = 40 / 50 = 0.8 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["188"]
Explanation
Given:
Total volume: 1500 mL
Time: 8 hours
Steps to solve:
Determine the flow rate:
Set up a proportion to solve for the unknown flow rate (X):
1500 mL/8 hr = X mL/1 hr
Cross-multiplying gives us:
1500 mL x 1 hr = 8 hr x X mL
Simplifying:
1500 = 8X
Solving for X:
X = 1500 / 8 = 187.5 mL/hr
Round to the nearest whole number:
188 mL/hr.
Correct Answer is ["0.5"]
Explanation
Given:
Prescribed dose: 1 mg of phytonadione
Available concentration: 1 mg/0.5 mL
Steps to solve:
Concentration: 1 mg/0.5 mL
To administer 1 mg of phytonadione, the nurse needs to administer exactly 0.5 mL.
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