Ati dosage calculation lpn paediatrics nursing proctored assessment 3.2
Calculation
A nurse is preparing to administer morphine 0.1 mg/kg IM to a school-age child who weighs 88 Ib. The amount available is morphine 4 mg/mL. How many ml 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.)
mL
Explanation & Rationale
Step-by-Step Solution: Convert the child's weight from pounds to kilograms. 1 pound is approximately 0.453592 kilograms. 88 pounds = 88 x 0.453592 = 39.916736 kilograms. Calculate the total dose of morphine. The prescribed dose is 0.1 mg/kg. The child weighs 39.916736 kg. Total dose = 0.1 mg/kg x 39.916736 kg = 3.9916736 mg. Calculate the volume of morphine injection to administer. The available morphine injection is 4 mg/mL. To find the volume, we can set up a proportion: 4 mg / 1 mL = 3.9916736 mg / x mL Cross-multiplying: 4x = 3.9916736 Solving for x: x = 3.9916736 / 4 = 0.9979184 mL Round the answer to the nearest whole number: 1 mL
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