A client who weighs 154 pounds receives a prescription for epoetin alfa 50 units/kg subcutaneously 3 times a week. The medication is available in 2000 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.)
The Correct Answer is ["1.8"]
- Convert the client's weight to kilograms: 154 pounds / 2.2 = 70 kg - Calculate the dose in units: 50 units/kg x 70 kg = 3500 units
- Calculate the volume in mL: 3500 units / 2000 units/mL = 1.75 mL
- Round to the nearest tenth: 1.8 mL
- The nurse should administer 1.8 mL with each dose.
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Related Questions
Correct Answer is ["200"]
Explanation
- To calculate the infusion rate, divide the volume of the solution by the infusion time in hours: 500 mg/100 mL / 0.5 hour = 200 mL/hour
- The nurse should program the infusion pump to deliver 200 mL/hour of daptomycin solution
- The answer is 200 (mL/hour)
Correct Answer is ["2.4"]
Explanation
- To find the volume of cefazolin to administer, we need to use the formula: Volume = Dose / Concentration
- First, we need to find the concentration of cefazolin after reconstitution. The label says that 1 gram of cefazolin is dissolved in 3 mL of water. To get the concentration in mg/mL, we need to multiply both the numerator and denominator by 1000: (1000 mg / 1 g) x (1 g / 3 mL) = 1000 mg / 3 mL
- Next, we need to simplify the fraction by dividing both the numerator and denominator by the greatest common factor, which is 3: (1000 mg / 3) / (3 mL / 3) = 333.33 mg/mL
- Now, we have the concentration of cefazolin in mg/mL. We can plug in the given dose of 800 mg into the formula: Volume = 800 mg / 333.33 mg/mL - Finally, we need to solve for the volume by dividing both sides by 333.33: Volume / 333.33 = (800 mg / 333.33 mg/mL) / 333.33
- The answer is 2.4 mL (rounded to the nearest tenth)
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