A nurse is preparing to administer dimercaprol 3 mg/kg IM to an adolescent who weighs 79 lb. Available is dimercaprol injection 100 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 ["1.1"]
To calculate the dosage of dimercaprol for the adolescent, first convert the weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The adolescent weighs 79 lb, which is approximately 35.91 kg (79 ÷ 2.2). The prescribed dose is 3 mg/kg, so the total dosage required is 107.73 mg (35.91 kg x 3 mg/kg). With the available dimercaprol injection of 100 mg/mL, the nurse should administer 1.1 mL (107.73 mg ÷ 100 mg/mL), rounding to the nearest tenth. Therefore, the nurse should administer 1.1 mL of dimercaprol injection.
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Related Questions
Correct Answer is ["1.1"]
Explanation
To calculate the dosage of filgrastim, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 71 pounds, which is approximately 32.27 kilograms (71 lb / 2.2 kg/lb). Next, multiply the child's weight in kilograms by the dosage prescribed, which is 10 mcg/kg. This results in a total dosage of 322.7 mcg (32.27 kg * 10 mcg/kg). Finally, divide the total dosage needed by the concentration of the available medication to find out how many mL to administer. The filgrastim injection available is 300 mcg/mL, so you would administer approximately 1.08 mL (322.7 mcg / 300 mcg/mL), which rounds to 1.1 mL when rounded to the nearest tenth.
Correct Answer is ["3.8"]
Explanation
To calculate the dosage of acetaminophen for the toddler, first convert the weight from pounds to kilograms, knowing that 1 kg equals 2.2 lbs. The toddler weighs 26.4 lbs, which is approximately 12 kg (26.4 lbs ÷ 2.2 lbs/kg). The prescribed dose is 10 mg/kg, so the toddler's dose is 120 mg (12 kg x 10 mg/kg). Since the available medication is 160 mg/5 mL, divide the dose needed by the concentration to find the volume: 120 mg ÷ (160 mg/5 mL) = 3.75 mL. Therefore, the nurse should administer 3.8 mL per dose, rounding to the nearest tenth.
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