A nurse is preparing to administer penicillin G benzathine 1,200,000 units IM to a school-age child. Available is penicillin G benzathine injection 600,000 units/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.)
The Correct Answer is ["2"]
To calculate the volume of penicillin G benzathine injection required, divide the prescribed dose by the concentration available. In this case, 1,200,000 units prescribed divided by 600,000 units per mL results in 2 mL.
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Related Questions
Correct Answer is ["1.5"]
Explanation
To administer the correct dose of hydrocortisone, which is 7.5 mg, when only 5 mg tablets are available, the nurse would need to give one and a half tablets to achieve the desired dose. 7.5 mg divided by 5 mg per tablet equals 1.5 tablets.
Correct Answer is ["1.9"]
Explanation
To calculate the dosage of cefotaxime, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 50 lb, which is approximately 22.7 kg (50 / 2.2). The prescribed dose is 100 mg/kg/day, so the total daily dose is 2,270 mg (100 mg/kg * 22.7 kg). This total daily dose should be divided into equal doses administered every 6 hours, which means 4 doses per day. Therefore, each dose will be 567.5 mg (2,270 mg / 4). With the medication available at a concentration of 300 mg/mL, divide the single dose by the concentration to find the volume per dose: 567.5 mg / 300 mg/mL = 1.89 mL. Rounded to the nearest tenth, the nurse should administer 1.9 mL per dose.
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