A nurse is preparing to administer clindamycin 10 mg/kg IM to a school-age child who weighs 77 lb. Available is clindamycin injection 150 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 ["2.3"]
Step-by-step calculation:
The child's weight is 77 lb.
The medication dosage is 10 mg/kg.
The available medication concentration is 150 mg/mL.
Calculating the total dose in mg:
Convert the child's weight to kg: 77 lb ÷ 2.2 lb/kg = 35 kg
Calculate the total dose: 35 kg × 10 mg/kg = 350 mg
Calculating the volume to administer:
Use the concentration of the medication: 350 mg ÷ 150 mg/mL = 2.33 mL
Rounding the answer:
2.33 rounds to 2.3 mL
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Related Questions
Correct Answer is ["1.6"]
Explanation
Step 1: Determine the total dose of ceftriaxone to administer.
The total dose prescribed is 400 mg. This dose will be divided into two equal doses for the infant.
Step 2: Calculate the volume for each dose.
The available ceftriaxone solution has a concentration of 500 mg in 2 mL. This means that 500 mg is present in 2 mL, so each mL contains 250 mg of ceftriaxone.
To calculate how many mL are needed for the total dose of 400 mg, we use the following formula:
Volume (mL)=Dose in mg/Concentration in mg/mL=400 mg/250 mg/mL=1.6 mL
Step 3: Round the answer.
1.6 mL
Correct Answer is ["83"]
Explanation
Flow rate (mL/hr)=Total volume (mL)/Infusion time (hr)
Insert the given values:
Total volume = 1,000 mL.
Infusion time = 12 hr.
Flow rate=1,000 mL/12 hr=83.33 mL/hr
Round to the nearest whole number:
83.333 rounds to 83 mL/hr
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