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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.)
Answer and Explanation

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.


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Related Questions

Correct Answer is ["0.5"]

Explanation

Here's how to calculate the volume (mL) of filgrastim the nurse should administer:

1. Client weight conversion:

Client weight: 132 pounds

Medication dosage is based on weight per kilogram (kg).

Conversion factor: 1 kg = 2.205 lbs

Client weight (kg): 132 pounds / 2.205 lbs/kg = 60 kg (round to nearest whole number)

2. Filgrastim dosage:

Prescribed dose: 5 mcg/kg/day (given)

3. Daily filgrastim amount:

Daily dose (mcg) = Dose (mcg/kg/day) x Client weight (kg)

Daily dose (mcg) = 5 mcg/kg/day * 60 kg

Daily dose (mcg) = 300 mcg (round to nearest whole number)

4. Filgrastim vial concentration:

The medication is available in 480 mcg/0.8 mL. This indicates the concentration of filgrastim in the vial is 480 mcg per 0.8 mL.

5. We need to find the volume (mL) to administer that provides the daily dose (300 mcg) based on the medication concentration (480 mcg/0.8 mL).

Volume to administer (mL) = Daily dose (mcg) / Concentration (mcg/mL)

Volume to administer (mL) = 300 mcg / (480 mcg/0.8 mL)

To perform the division accurately, we need the concentration in the same units (mcg/mL) for both the numerator and denominator.

We can achieve this by multiplying the vial concentration (480 mcg/0.8 mL) by a factor that converts the denominator (0.8 mL) to 1 mL.

Factor = 1 mL / 0.8 mL = 1.25 (since 1.25 x 0.8 mL = 1 mL)

Apply the factor to adjust the concentration in the denominator:

Adjusted concentration = 480 mcg/0.8 mL * 1.25 = 600 mcg/mL

Now, calculate the volume to administer:

Volume to administer (mL) = 300 mcg / (600 mcg/mL)

Volume to administer (mL) = 0.5 mL (round to nearest tenth as requested)

Therefore, the nurse should administer approximately 0.5 mL of filgrastim subcutaneously.

Correct Answer is ["0.5"]

Explanation

Here's how to calculate the volume of heparin the nurse should administer:

1. Heparin dose: 5,000 units (given)

2. Heparin concentration: 10,000 units/mL (given on the vial label)

We need to find the volume (mL) containing the prescribed dose (5,000 units) of heparin.

Calculation:

Volume to administer (mL) = Dose (units) / Concentration (units/mL)

Volume to administer (mL) = 5,000 units / 10,000 units/mL

Volume to administer (mL) = 0.5 mL (round to nearest tenth as requested)

Therefore, the nurse should administer 0.5 mL of heparin.

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