A 9-year-old child who weighs 66 lb is to receive gentamicin sulfate 2 mg/kg/dose every 8 hours for an Escherichia coli urinary tract infection. How many mg per dose should this child receive? (Enter numeric value only.)
The Correct Answer is ["60"]
Here's how to calculate the gentamicin dosage per dose for the child:
Client weight conversion:
Client weight: 66 lbs
We need the weight in kilograms (kg) for the medication dosage.
Conversion factor: 1 kg = 2.205 lbs
Client weight (kg) = 66 lbs / 2.205 lbs/kg = 30 kg (round to nearest whole number)
Gentamicin dosage:
Prescribed dose: 2 mg/kg/dose (given)
Calculate the total gentamicin amount per dose:
Total dose (mg/dose) = Dose (mg/kg/dose) x Client weight (kg)
Total dose (mg/dose) = 2 mg/kg/dose * 30 kg
Total dose (mg/dose) = 60 mg (round to nearest whole number)
Therefore, the child should receive 60 mg of gentamicin sulfate per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["100"]
Explanation
The medication is to be administered over 30 minutes,
so if we want to find out the rate in mL/hour,
we need to double the total volume because there are 60 minutes in an hour.
Therefore, the infusion pump should be set to deliver
50mL/30minutes × 60minutes / hour = 100mL/hour
So, the answer is 100. The nurse should program the infusion pump to deliver 100 mL/hour
Correct Answer is ["0.25"]
Explanation
Here's how to calculate the volume the nurse should administer after reconstituting the medication:
Reconstitution:
The medication vial is labeled "0.3 mg with 1.2 mL of sterile water." This means adding 1.2 mL of diluent will result in a total volume of 1.2 mL solution.
Important Note:
The concentration of the medication after reconstitution is not explicitly provided on the label.
We cannot directly calculate the volume to administer based solely on the prescribed dose (0.0625 mg) and the unknown concentration.
Scenario:
In real-world practice, nurses rely on the medication information sheet or the manufacturer's label for dilution instructions and the final concentration after reconstitution.
This information is crucial for calculating the accurate volume to administer the prescribed dose.
Assuming the medication information sheet specifies:
After reconstitution with 1.2 mL diluent, the final concentration is 0.25 mg/mL.
Calculation (based on the assumed concentration):
Prescribed dose: 0.0625 mg
Volume to administer (mL) = Dose (mg) / Concentration (mg/mL)
Volume to administer (mL) = 0.0625 mg / 0.25 mg/mL
Volume to administer (mL) = 0.25 mL (round to nearest hundredth)
Therefore, based on the assumed concentration after reconstitution (0.25 mg/mL), the nurse should administer 0.25 mL to the client.
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