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The healthcare provider prescribes epoetin alfa 50 units/kg subcutaneously (SubQ) twice daily (BID) for a client who weighs 126 pounds. The available vial is labeled, "10,000 Units/mL." Based on the client's weight, how many milliliters should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest hundredth.)

Answer and Explanation

The Correct Answer is ["0.29"]

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

1. Client weight conversion:

Client weight: 126 pounds

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

We need to convert the weight to kg for accurate calculation.

Conversion factor: 1 kg = 2.205 lbs

Client weight (kg) = 126 pounds / 2.205 lbs/kg

Client weight (kg) = 57.14 kg (round to nearest hundredth)

2. Epoetin alfa dosage:

Prescribed dose: 50 units/kg (given)

3. Epoetin alfa concentration:

Vial label: 10,000 Units/mL

4. We need to find the volume (mL) to administer that provides the prescribed dose (50 units/kg) based on the client's weight (57.14 kg) and the medication concentration (10,000 Units/mL).

Calculation:

Total epoetin alfa dose (units): Dose (units/kg) x Client weight (kg)

Total epoetin alfa dose (units): 50 units/kg * 57.14 kg

Total epoetin alfa dose (units): 2857 units (round to nearest whole number)

Volume to administer (mL): Total dose (units) / Concentration (units/mL)

Volume to administer (mL): 2857 units / 10,000 Units/mL

Volume to administer (mL): 0.2857 mL (round to nearest hundredth as requested)

Therefore, the nurse should administer approximately 0.29 mL of epoetin alfa subcutaneously.

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Free Nursing Study Resources

Correct Answer is ["18"]

Explanation

Here's how to calculate the rate (mL/hour) for the infusion pump:

Heparin concentration:

The medication is available in a 250 mL bag containing 20,000 units of heparin.

Heparin concentration (units/mL) = Total heparin (units) / Volume (mL)

Heparin concentration (units/mL) = 20,000 units / 250 mL

Heparin concentration (units/mL) = 80 units/mL (round to nearest whole number)

Prescribed heparin dose: 1,400 units/hour (given)

We need to find the volume delivered per hour (mL/hour) to achieve the prescribed heparin dose (1400 units/hour) considering the concentration (80 units/mL).

Infusion rate (mL/hour) = Dose (units/hour) / Concentration (units/mL)

Infusion rate (mL/hour) = 1400 units/hour / 80 units/mL

Infusion rate (mL/hour) = 17.5 mL/hour (round to nearest whole number)

Therefore, the nurse should program the infusion pump to deliver approximately 18 mL/hour.

Correct Answer is ["5"]

Explanation

Here's how to calculate the volume of medication the nurse should administer on the first day:

1. Convert child's weight to kilograms (kg):

We know 1 kg = 2.205 pounds.

Child weight (kg) = 44 pounds / 2.205 pounds/kg = 20 kg (round to nearest whole number for this calculation).

2. Calculate the total azithromycin medication for the first day (mg):

Prescribed dosage (mg/kg): 10 mg/kg

Child weight (kg): 20 kg (rounded value from step 1)

Total medication on day 1 (mg) = Dosage (mg/kg) x Client weight (kg)

Total medication on day 1 (mg) = 10 mg/kg x 20 kg = 200 mg

3. Determine the volume (mL) needed based on the medication concentration:

Medication concentration (mg/mL): 200 mg/5 mL (given)

Total medication on day 1 (mg): 200 mg (calculated in step 2)

Volume to administer (mL) = Total medication (mg) / Concentration (mg/mL)

Volume to administer (mL) = 200 mg / 200 mg/5 mL

Volume to administer (mL) = 5 mL

Therefore, the nurse should administer 5 mL of the azithromycin solution on the first day.

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["18"]

Explanation

Correct Answer is ["5"]

Explanation

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