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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 ["10"]

Explanation

To calculate the volume in milliliters (mL) of amoxicillin oral suspension needed to administer 775 mg, you can use the following formula:

Volume (mL) = (Desired dose in mg / Concentration in mg/mL)

Given:

  • Desired dose = 775 mg
  • Concentration = 400 mg/5 mL

First, calculate the concentration in mg/mL by dividing 400 mg by 5 mL:

Concentration = 400 mg / 5 mL = 80 mg/mL

Now, use the formula to calculate the volume in mL:

Volume (mL) = (775 mg / 80 mg/mL)

Volume (mL) ≈ 9.69 mL

Rounded to the nearest whole number, the nurse should administer approximately 10 mL of amoxicillin oral suspension to provide a dose of 775 mg.

Correct Answer is ["300"]

Explanation

To calculate how many milligrams (mg) of guaifenesin the client is taking with each dose, you can use the following steps:
Determine the volume of the client's dose. The client is taking 1 tablespoon (Tbsp) of guaifenesin oral solution.
1 Tbsp is approximately equal to 15 mL.
Determine the concentration of guaifenesin in the oral solution, which is 100 mg/5 mL.
Calculate the amount of guaifenesin in the client's dose:
Amount (mg) = (Volume of dose in mL / Concentration in mg/mL)
Amount (mg) = (15 mL / 5 mg/mL) = 3 doses of 100 mg each
So, the client is taking 300 mg of guaifenesin with each dose.

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