A nurse is preparing to administer diphenhydramine 30 mg IM stat to a client who is having an allergic reaction. Available is diphenhydramine 50 mg/mL. How many mL should the nurse administer per dose? (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"]
To calculate the dosage of diphenhydramine, the nurse needs to use the formula D/H x Q
= X, where D is the desired dose, H is the on-hand dose, Q is the quantity of the on-hand dose, and X is the amount to administer. In this case, D is 30 mg, H is 50 mg/mL, and Q is 1 mL. Plugging these values into the formula, we get:
30/50 x 1 = 0.6

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Influenza vaccines are typically produced using eggs, and individuals with egg allergies may react to the vaccine. However, there are egg-free alternatives available, and consultation with an allergist is recommended in such cases.
B. Polio vaccines do not contain egg proteins and are safe for individuals with egg allergies.=
C. Hib vaccines are not contraindicated for individuals with egg allergies.
D. Hepatitis B vaccines do not contain egg proteins and are generally safe for individuals with egg allergies.
Correct Answer is ["2"]
Explanation
To answer the question, the nurse should first calculate the dose of ondansetron in mL. The formula is:
Dose (mL) = Ordered dose (mg) / Available dose (mg/mL)
Plugging in the values, we get:
Dose (mL) = 4 mg / 2 mg/mL
Dose (mL) = 2 mL

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