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.)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.4"]
Explanation
here's how to calculate the volume (mL) of ketorolac the nurse should administer:
1. Dose of ketorolac to administer:
Dose = 12 mg (given)
2. Concentration of ketorolac in the vial:
Concentration = 30 mg/mL (given)
3. We need to find the volume (mL) containing the prescribed dose (12 mg) considering the concentration (30 mg/mL) in the vial.
Volume to administer (mL): Dose (mg) / Concentration (mg/mL)
Volume to administer (mL): 12 mg / 30 mg/mL
Volume to administer (mL) = 0.4 mL (round to nearest tenth)
Therefore, the nurse should administer approximately 0.4 mL of ketorolac intravenously.
Correct Answer is ["0.9"]
Explanation
Here's how to calculate the total volume the nurse should administer for the combined medication:
1. Calculate the volume of hydromorphone:
Dose: 4 mg
Concentration: 10 mg/mL (from ampule label)
Volume (mL) for hydromorphone = Dose (mg) / Concentration (mg/mL)
Volume (mL) for hydromorphone = 4 mg / 10 mg/mL
Volume (mL) for hydromorphone = 0.4 mL
2. Calculate the volume of hydroxyzine:
Dose: 25 mg
Concentration: 50 mg/mL (from vial label)
Volume (mL) for hydroxyzine = Dose (mg) / Concentration (mg/mL)
Volume (mL) for hydroxyzine = 25 mg / 50 mg/mL
Volume (mL) for hydroxyzine = 0.5 mL
3. Add the volumes for each medication to find the total volume:
Total volume = Volume (mL) for hydromorphone + Volume (mL) for hydroxyzine
Total volume = 0.4 mL + 0.5 mL
Total volume = 0.9 mL (round to nearest tenth as requested)
Therefore, the nurse should administer a total of 0.9 mL.
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