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A client who weighs 154 lb receives a prescription for epoetin alfa 50 units/kg SUBQ 3 times a week. The medication is available in 2,000 units/mL vial. How many mL should the nurse administer with each dose? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
Answer and Explanation

The Correct Answer is ["0.29"]

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

1. Convert client weight to kilograms (kg):

Weight (kg) = Weight (pounds) / 2.205

Weight (kg) = 126 pounds / 2.205

Weight (kg) = 57.14 kg (round to two decimal places for better accuracy)

2. Calculate the dose per administration based on weight and prescribed dose:

Dose per administration (units) = Prescribed dose (units/kg) x Weight (kg)

Dose per administration (units) = 50 units/kg x 57.14 kg

Dose per administration (units) = 2857 units (round to nearest whole number)

3. Calculate the volume (mL) to administer for one dose:

Volume (mL) = Dose per administration (units) / Concentration (units/mL)

Concentration (units/mL) = 10,000 units/mL (given on the vial label)

Volume (mL) = 2857 units / 10,000 units/mL

Volume (mL) = 0.2857 mL (round to nearest hundredth as requested)

Therefore, the nurse should administer approximately 0.29 mL of epoetin alfa for one dose.


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Related Questions

Correct Answer is ["21"]

Explanation

Here's how to calculate the infusion rate for lactated Ringer's solution:

We know:

Total volume of lactated Ringer's solution: 1 liter (1000 mL) (given)

Infusion duration: 8 hours (given)

IV administration set drip rate: 10 gtt/mL (given)

We need to find:

Infusion rate in gtt/min

Steps:

Calculate the volume that needs to be delivered per hour:

Volume per hour (mL) = Total volume (mL) / Infusion time (hours)

Volume per hour (mL) = 1000 mL / 8 hours

Volume per hour (mL) = 125 mL/hour

Calculate the infusion rate in gtt/min:

Infusion rate (gtt/min) = Volume per hour (mL) x Drip rate (gtt/mL) / 60 minutes/hour (convert hour to minutes)

Infusion rate (gtt/min) = 125 mL/hour x 10 gtt/mL / 60 minutes/hour

Infusion rate (gtt/min) = 20.83 gtt/min (round to nearest whole number)

Therefore, the nurse should regulate the infusion at 21 gtt/min.

Correct Answer is ["2000"]

Explanation

Here's how to calculate the total milligrams of ampicillin the child should receive per day:

Convert child's weight to kilograms:

Weight (kg) = Weight (lbs) / Conversion factor (lbs/kg)

Weight (kg) = 88 lbs / 2.205 lbs/kg

Weight (kg) = 40 kg (round to nearest whole number)

Calculate the total daily dosage:

Daily dosage (mg) = Dose per kg (mg/kg/day) * Weight (kg)

Daily dosage (mg) = 50 mg/kg/day * 40 kg

Daily dosage (mg) = 2000 mg

Therefore, the child should receive 2000 mg of ampicillin per day.

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