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.)
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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Related Questions
Correct Answer is ["0.7"]
Explanation
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.
Correct Answer is ["8"]
Explanation
To calculate the dose of phenytoin oral suspension, the nurse should use the following formula:
Dose (mL) = Desired dose (mg) / Concentration (mg/mL) x Volume (mL)
Plugging in the values from the question, we get:
Dose (mL) = 200 mg / 125 mg/5 mL x 5 mL
Simplifying the equation, we get:
Dose (mL) = 8 mL
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