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A nurse is preparing to administer methylprednisolone 30 mg/kg via IV bolus to a client who weighs 184 lb. Available is methylprednisolone 125 mg/mL. How many mL 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 ["20.1"]

To calculate the dosage of methylprednisolone, first convert the client's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds.

The client weighs 184 pounds, which is approximately 83.64 kilograms (184 lb / 2.2).

Next, multiply the client's weight in kilograms by the dosage prescribed, which is 30 mg/kg.

This results in a total dosage of 2509.2 mg (83.64 kg * 30 mg/kg).

Finally, divide the total dosage by the concentration of the available medication to find out how many milliliters to administer.

The available medication is 125 mg/mL,

so you would administer 20.07 mL (2509.2 mg / 125 mg/mL).

Rounded to the nearest tenth, the nurse should administer 20.1 mL. 


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Related Questions

Correct Answer is ["15"]

Explanation

To answer this question, we need to calculate the dose of esmolol in mcg/kg/min, then convert it to mg/hr, and then use the formula:

mL/hr = (dose in mg/hr) x (volume in mL) / (concentration in mg)

First, we convert the client's weight from pounds to kilograms:

110 lb x 1 kg / 2.2 lb = 50 kg

Next, we multiply the client's weight by the prescribed dose to get the dose in mcg/min: 50 kg x 50 mcg/kg/min = 2500 mcg/min

Then, we divide the dose in mcg/min by 1000 to get the dose in mg/min: 2500 mcg/min / 1000 = 2.5 mg/min

Finally, we multiply the dose in mg/min by 60 to get the dose in mg/hr: 2.5 mg/min x 60 = 150 mg/hr

Now, we can use the formula to find the infusion rate in mL/hr:

mL/hr = (150 mg/hr) x (250 mL) / (2500 mg)

mL/hr = 15

Therefore, the nurse should set the IV pump to deliver 15 mL/hr.

Correct Answer is ["3.5"]

Explanation

  1. Convert the client's weight from pounds to kilograms:

    • 154 lb ÷ 2.2 lb/kg = 70 kg

  2. Calculate the total dose required:

    • 0.25 mg/kg × 70 kg = 17.5 mg

  3. Determine the volume to administer:

    • Given concentration: 5 mg/mL
    • 17.5 mg ÷ 5 mg/mL = 3.5 mL

  4. Rounding to the nearest tenth:

    • The answer remains 3.5 mL

So the nurse should administer 3.5 mL of diltiazem IV injection.

which is 17.5 mg / 5 mg/mL = 3.5 mL. Rounding to the nearest tenth, the nurse should administer 3.5 mL of diltiazem IV injection.

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