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A nurse is preparing to administer fentanyl 0.5 mcg/kg via IV bolus to a client who weighs 187 lb. Available is fentanyl 50 mcg/ml. How many mi should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Answer and Explanation

The Correct Answer is ["0.9"]

  • Convert the client’s weight from pounds to kilograms:

    • 1 kilogram (kg) = 2.2 pounds (lb)
    • Weight in kg = 187 lb / 2.2 = 85 kg

  • Calculate the dose of fentanyl in micrograms (mcg):

    • Dose = 0.5 mcg/kg × 85 kg = 42.5 mcg

  • Determine the volume of fentanyl to administer:

    • Available concentration is 50 mcg/ml
    • Volume (ml) = Dose (mcg) / Concentration (mcg/ml)
    • Volume (ml) = 42.5 mcg / 50 mcg/ml = 0.85 ml

  • Round the answer to the nearest tenth:

    • Rounded volume = 0.9 ml


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Related Questions

Correct Answer is ["4.5"]

Explanation

To calculate the mL of ondansetron to administer, follow these steps:
Convert the client's weight from pounds (lb) to kilograms (kg):
Client's weight in kg = Client's weight in lb / 2.2 Client's weight in kg = 132 lb / 2.2 ≈ 60 kg

Determine the total dosage required based on the client's weight:
Total dosage = Client's weight in kg × Dosage (mg/kg) Total dosage = 60 kg × 0.15 mg/kg = 9 mg

Determine the mL to administer based on the available concentration:
Concentration (mg/mL) = 2 mg / 1 mL = 2 mg/mL

Calculate the mL to administer:
mL to administer = Total dosage (mg) / Concentration (mg/mL) mL to administer = 9 mg / 2 mg/mL = 4.5 mL

Round the answer to the nearest tenth:
The nurse should administer 4.5 mL of ondansetron.

Correct Answer is ["83"]

Explanation

To calculate the manual IV flow rate in drops per minute (gtt/min), you can use the following formula:

Flow rate (gtt/min) = (Volume to be infused in mL / Time in minutes) * Drop factor (gtt/mL)

Given:

  • Volume to be infused = 250 mL
  • Time in minutes = 30 minutes
  • Drop factor = 10 gtt/mL

Now, plug these values into the formula:

Flow rate (gtt/min) = (250 mL / 30 min) * 10 gtt/mL

Flow rate (gtt/min) = (8.33) * 10

Flow rate (gtt/min) ≈ 83.3

Rounded to the nearest whole number, the nurse should set the manual IV flow rate to deliver approximately 83 gtt/min.

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