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.)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3600"]
Explanation
Here's how to calculate the maximum daily dose of acetaminophen for the child:
Calculate the maximum dose per administration:
Maximum dose per kg per administration = 15 mg/kg (given)
Child's weight = 40 kg (given)
Since this is a PRN medication (given as needed), we will calculate the maximum dose per administration based on the prescribed dosage.
Maximum dose per administration = 15 mg/kg/dose * 40 kg
Maximum dose per administration = 600 mg (round to nearest whole number)
Calculate the number of administrations in a 24-hour period (maximum):
Frequency: Every 4 to 6 hours PRN (given)
Since this is a PRN medication, we will assume the maximum frequency (every 4 hours) for calculating the maximum daily dose.
Number of administrations (maximum) = 24 hours / Frequency (hours/administration)
Number of administrations (maximum) = 24 hours / 4 hours/administration
Number of administrations (maximum) = 6 administrations
Calculate the maximum daily dose:
Maximum daily dose = Maximum dose per administration x Number of administrations (maximum)
Maximum daily dose = 600 mg/administration * 6 administrations
Maximum daily dose = 3600 mg
Therefore, the maximum daily dose the nurse should administer is 3600 mg.
Correct Answer is ["50"]
Explanation
First, we need to find out how many mL/hr the infusion pump is currently delivering.
Given:
The client is receiving 1,800 units/hour of heparin.
The available medication is 20,000 units/500 mL.
We can set up the proportion as follows:
1,800units/ xmL = 20,000units/500mL
Solving for x gives us the volume in mL that the infusion pump is currently delivering per hour.
Cross-multiplying and solving for x:
X = 1,800units×500mL/20,000units
After performing the calculation, we find that x equals 45 mL/hr.
Given that the healthcare provider prescribes an increase of 5 mL/hr in the IV rate, the nurse should set the infusion pump to deliver:
Newrate(mL/hr) = Currentrate(mL/hr) + Increase(mL/hr) = 45mL/hr+5mL/hr
After performing the calculation, we find that the new rate equals 50 mL/hr.
So, the nurse should set the infusion pump to deliver 50 mL/hr.
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