A nurse is preparing to administer hepatitis B vaccine 5 mcg IM to a newborn. Available is hepatitis B vaccine injection 5 mcg/0.5 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 ["0.5"]
Desired dose of hepatitis B vaccine: 5 mcg
Available strength of hepatitis B vaccine injection: 5 mcg/0.5 mL
First, let's find out how many milliliters of hepatitis B vaccine correspond to the desired dose:
Volume (mL) = Desired dose / Concentration
Volume (mL) = 5 mcg / 5 mcg/0.5 mL Volume (mL) = 0.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["5000000"]
Explanation
1g= 1,000,000 mcg
5g= 5 *1,000,000
=5,000,000 mcg
Correct Answer is ["3.4 "]
Explanation
Given:
- Desired dose of morphine: 0.3 mg/kg
- Client's weight: 99 lb
- Available strength of morphine oral solution: 4 mg/mL
First convert the client's weight from pounds to kilograms: 99 lb ÷ 2.20462 = 44.91 kg (rounded to the nearest hundredth)
The desired dose of morphine:
Desired dose = Client's weight × Dose per kg Desired dose = 44.91 kg × 0.3 mg/kg
Desired dose ≈ 13.473 mg
The milliliters of morphine oral solution this corresponds to:
Volume (mL) = Desired dose / Concentration Volume (mL) = 13.473 mg / 4 mg/mL Volume (mL) ≈ 3.37 mL
So, the nurse should administer approximately 3.4 mL of morphine oral solution.
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