The healthcare provider prescribes filgrastim 5 mcg/kg subqutaneous (SubQ) for a client who weighs 176 pounds. The available vial is labeled, "Filgrastim 300 mcg/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 tenth.)

Answer and Explanation

The Correct Answer is ["1.3"]

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

Client weight conversion:

Client weight: 176 pounds

Since 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) = 176 pounds / 2.205 lbs/kg

Client weight (kg) = 80 kg (round to nearest whole number)

Filgrastim dose per kg:

Dose per kg = 5 mcg/kg (given)

Filgrastim concentration:

The medication vial is labeled 300 mcg/mL. This indicates there are 300 mcg of filgrastim in every 1 mL of solution.

We need to find the volume (mL) containing the prescribed dose (based on weight) of filgrastim (5 mcg/kg) considering the concentration (300 mcg/mL) in the vial.

Total filgrastim dose (mcg): Dose (mcg/kg) x Client weight (kg)

Total filgrastim dose (mcg): 5 mcg/kg * 80 kg

Total filgrastim dose (mcg): 400 mcg

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

Volume to administer (mL): 400 mcg / 300 mcg/mL

Volume to administer (mL) = 1.33 mL (round to nearest tenth)

Therefore, the nurse should administer approximately 1.3 mL of filgrastim subcutaneously.

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Free Nursing Study Resources

Correct Answer is ["0.64"]

Explanation

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

1. We know:

Dose to administer: 40 mg (given)

Concentration of the medication: 125 mg per 2 mL (given from the vial label)

2. We need to find:

Volume of medication to administer (mL)

Calculation:

We can set up a proportion to find the volume needed for the desired dose:

Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)

Rearrange the formula to solve for the volume:

Volume to administer (mL) = Desired dose (mg) / Concentration (mg/mL)

Plug in the values:

Volume to administer (mL) = 40 mg / (125 mg/2 mL)

Important note: We can divide the concentration by 2 mL because we only need the medication concentration, not the total volume in the vial (which is 2 mL).

Volume to administer (mL) = 40 mg / 62.5 mg/mL (round the concentration to nearest tenth for easier calculation)

Volume to administer (mL) = 0.64 mL (round to nearest hundredth)

Therefore, the nurse should administer 0.64 mL of methylprednisolone.

Correct Answer is ["18"]

Explanation

Here's how to calculate the volume (mL/hour) the nurse should program the infusion pump to deliver heparin:

1. We know:

Heparin dose rate: 1,400 units/hour (given by healthcare provider)

Heparin concentration in the IV bag: 20,000 units per 250 mL (given on the label)

2. We need to find:

Volume delivery rate (mL/hour)

3. Calculation:

To find the volume rate, we can divide the heparin dose rate (units/hour) by the heparin concentration (units/mL)

Volume rate (mL/hour) = Heparin dose rate (units/hour) / Heparin concentration (units/mL)

Plug in the values:

Volume rate (mL/hour) = 1,400 units/hour / (20,000 units / 250 mL)

Important note: We can rearrange the fraction with the concentration term because we are dividing by units/mL, which is equivalent to multiplying by mL/units. So, effectively, we are multiplying by the reciprocal of the concentration.

Volume rate (mL/hour) = 1,400 units/hour x (250 mL / 20,000 units)

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

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

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Naxlex Comprehensive Predictor Exams

The nurse is preparing to administer methylprednisolone 40 mg IV. The medication vial is labeled, "125 mg per 2 mL." How many mL of medication should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest hundredth.)

Correct Answer is ["0.64"]

Explanation

Correct Answer is ["18"]

Explanation

The nurse is preparing to administer ampicillin PO to a 12-year-old child with impetigo who weighs 88 pounds. The prescription is for 50 mg/kg/day. How many mg should the child receive per day? (Enter numeric value only.)

The healthcare provider (HCP) prescribes lidocaine 4 mg/minute IV for a client experiencing premature ventricular contractions. The IV bag contains "Lidocaine 1 gram in dextrose 5% in water 500 mL How many mL/hr should the nurse program the infusion pump to deliver? (Enter numerical value only.)

Heparin 5,000 units IV is prescribed as a loading dose, to be administered over 5 minutes for a client with thrombophlebitis. The vial is labeled, "10,000 units/mL." How many ml. should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

A client scheduled for coronary artery bypass surgery is to receive an intravenous (IV) infusion of 1 gram cefazolin in 50 ml 0.9% sodium chloride, USP over 30 minutes. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only, as a whole number.)

A client with an extrapyramidal reaction receives a prescription for diphenhydramine 35 mg IM. The medication is supplied as 50 mg/ml in a 1 mL prefilled single use syringe. How many mL should the nurse give? (Enter the numerical value only. If rounding is required, round to the nearest tenth.)