Ati lpn pharmacology proctored exam 2023 retake 1
Calculation
A nurse is caring for a child who has recurrent otitis media. The child weighs 14.9 kg (33 lb). A prescription is written for amoxicillin 40 mg/kg PO to be given in two divided doses per day. The pharmacy provides the nurse with amoxicillin 250 mg/5 mL. How many mL of the medication should the nurse plan to administer for each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
mL
Explanation & Rationale
Calculate the total daily dose: Total daily dose (mg) = Weight (kg) x Dosage (mg/kg/day) =14.9 kg x 40 mg/kg/day = 596 mg/day Calculate the dose per administration (divided into two doses): Dose per administration (mg) = Total daily dose (mg) / Number of doses = 596 mg/day / 2 doses = 298 mg/dose Calculate the volume to administer per dose: Volume (mL) = Desired dose (mg) / Available concentration (mg/mL) Available concentration = 250 mg / 5 mL = 50 mg/mL Volume (mL) = 298 mg / 50 mg/mL = 5.96 mL/dose Round to the nearest whole number: 5.96 mL is 6 mL/dose
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