A nurse is preparing to administer morphine 0.2 mg/kg IM to a child who weighs 77 lb. Available is morphine injection 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 ["0.7"]

To calculate the dosage of morphine for a child, the nurse needs to convert the child's weight from pounds to kilograms and then multiply it by the prescribed dose per kilogram. The nurse also needs to divide the resulting amount by the concentration of the morphine injection to get the volume to be administered. The formula is:

Volume (mL) = (Weight (kg) x Dose (mg/kg)) / Concentration (mg/mL)

In this case, the child weighs 77 lb, which is equivalent to 35 kg (77 / 2.2 = 35). The prescribed dose is 0.2 mg/kg and the concentration of the morphine injection is 10 mg/mL. Therefore, the volume to be administered is:

Volume (mL) = (35 x 0.2) / 10

Volume (mL) = 0.7

The nurse should round the answer to the nearest tenth, which is 0.7 mL.

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Free Nursing Study Resources

Correct Answer is ["2"]

Explanation

To calculate the number of tablets needed to administer promethazine 25 mg PO, the nurse should use the following formula:

(number of tablets) = (desired dose) / (available dose)

Substituting the values given in the question, we get:

(number of tablets) = (25 mg) / (12.5 mg)

Simplifying, we get:

(number of tablets) = 2

Therefore, the nurse should administer 2 tablets of promethazine 12.5 mg to the client.

Correct Answer is ["0.5"]

Explanation

To calculate the dosage of chlorpromazine for a client, the nurse needs to use the formula D/H x V, where D is the desired dose, H is the dose on hand, and V is the volume on hand.

In this case, D is 12.5 mg, H is 25 mg, and V is 1 mL. Plugging these values into the formula, we get:

12.5 mg / 25 mg x 1 mL = 0.5 mL

The nurse should administer 0.5 mL of chlorpromazine to the client.

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A nurse is preparing to administer morphine 0.2 mg/kg IM to a child who weighs 77 lb. Available is morphine injection 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.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer promethazine 25 mg PO to a client. Available is promethazine 12.5 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["2"]

Explanation

A nurse is preparing to administer chlorpromazine 12.5 mg IM to a client. Available is chlorpromazine 25 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.)

Correct Answer is ["0.5"]

Explanation

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