A nurse is preparing to administer morphine 4 mg subcutaneous to a client. Available is morphine 10 mg/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.)

Answer and Explanation

The Correct Answer is ["0.4 "]

Volume (mL) = Desired dose / Concentration

Volume (mL) = 4 mg / 10 mg/mL

Volume (mL) = 0.4 mL

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Correct Answer is ["0.4 "]

Explanation

Given:

Desired dose of chlorpromazine: 0.55 mg/kg every 6 hours
Child's weight: 44 lb
Available strength of chlorpromazine injection: 25 mg/mL

First, convert the child's weight from pounds to kilograms:

44 lb ÷ 2.20462 = 20 kg

Now, let's calculate the desired dose of chlorpromazine:

Desired dose = Dosage per kg × Weight Desired dose = 0.55 mg/kg × 20 kg Desired dose = 11 mg

Now, let's find out how many milliliters of chlorpromazine correspond to this dose: Volume (mL) = Desired dose / Concentration

Volume (mL) = 11 mg / 25 mg/mL Volume (mL) ≈ 0.44 mL

So, the nurse should administer approximately 0.4 mL of chlorpromazine per dose.

Correct Answer is ["1.1 "]

Explanation

Given:

Desired dose of cefazolin: 250 mg
Reconstituted concentration of cefazolin: 225 mg/mL

First, calculate the volume of the reconstituted solution needed to administer the desired dose:

Volume (mL) = Desired dose / Concentration

Volume (mL) = 250 mg / 225 mg/mL Volume (mL) ≈ 1.11 mL

So, the nurse should administer approximately 1.1 mL of the reconstituted cefazolin solution.

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A nurse is preparing to administer morphine 4 mg subcutaneous to a client. Available is morphine 10 mg/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.)

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["0.4 "]

Explanation

Correct Answer is ["1.1 "]

Explanation

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