A nurse is preparing to administer gentamicin 2 mg/kg IM to a school-age child who weighs 55 lb. Available gentamicin injection 40 is 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 ["1.3"]
Step-by-step calculation:
The child's weight is 55 lb.
The medication dosage is 2 mg/kg.
The available medication concentration is 40 mg/mL.
Calculating the total dose in mg:
Convert the child's weight to kg: 55 lb ÷ 2.2 lb/kg = 25 kg
Calculate the total dose: 25 kg × 2 mg/kg = 50 mg
Calculating the volume to administer:
Use the concentration of the medication: 50 mg ÷ 40 mg/mL = 1.25 mL
Rounding the answer: 1.25 rounds to 1.3 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1"]
Explanation
1 tablespoon (Tbsp) = 15 milliliters (mL).
Calculate the dose in tablespoons:
15 mL÷15 mL/Tbsp=1
Round to the nearest whole number: 1 Tbsp
Correct Answer is ["10"]
Explanation
Review the medication label. The label specifies: "Discard after 10 days." After reconstitution, the medication remains effective for a maximum of 10 days. It must be refrigerated during this time to ensure its efficacy and safety. The nurse should inform the client that the medication will be effective for 10 days after reconstitution.
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