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A nurse is preparing to administer esmolol 50 mcg/kg/min by continuous IV infusion to a client who weighs 110 lb. Available is esmolol 2.5g in dextrose 5% in water 250 mL. The nurse should set the IV pump to deliver how many mL/hr?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Answer and Explanation

The Correct Answer is ["15"]

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. 


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Related Questions

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.

Correct Answer is ["0.25"]

Explanation

To convert micrograms to milligrams, divide by 1000: 250 mcg / 1000 = 0.25 mg. Round to the nearest hundredth: 0.25 mg. Therefore, the nurse should administer 0.25 mg of filgrastim.

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