An client who weighs 160 pounds receives a prescription for gentamicin 5 mg/kg/day intravenously in divided doses every 8 hours. How many mg should the nurse administer with each dose?
(Enter numerical value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["121"]
To calculate the dosage of gentamicin for a client who weighs 160 pounds, first convert the weight to kilograms, knowing that 1 kilogram equals 2.2 pounds. The client's weight in kilograms is approximately 72.73 kg (160 ÷ 2.2).
The prescription is for 5 mg/kg/day, so the total daily dosage is 363.65 mg (72.73 kg × 5 mg). Since the medication is to be divided into doses every 8 hours, divide the total daily dosage by 3, because there are three 8-hour intervals in 24 hours.
Therefore, each dose should be approximately 121.22 mg. 121 mg rounded off to the nearest whole number.
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Related Questions
Correct Answer is C
Explanation
A. Ensuring the correct placement of the nasogastric tube with an abdominal x-ray is important for treatment but does not address the infant's developmental needs.
B. Using sterile water for gastric lavage may be necessary for stomach decompression but does not directly support the infant's growth and development.
C. Offering a pacifier for non-nutritive sucking provides comfort and helps maintain the infant’s sucking reflex, which is crucial for feeding and oral development.
D. Physical therapy is not relevant for a 2-month-old infant with hypertrophic pyloric stenosis and does not address immediate developmental needs.
Correct Answer is B
Explanation
A. Mixing the dose with food is not recommended as it might affect the absorption of the medication and does not address the immediate situation.
B. Withholding the dose is appropriate because it is uncertain how much of the medication was absorbed. Administering another dose could lead to toxicity.
C. Giving another dose without knowing how much was absorbed could cause an overdose.
D. Administering a half dose now is not recommended because the exact amount absorbed is unknown, risking either underdose or overdose.
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