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A client with acute decompensated heart failure (HF) is to receive an IV infusion of inamrinone (Inocor) 8 mcg/kg/minute. The available vial of inamrinone is 0.1 grams/100 to be infused in 250ml bag of 0.9% normal saline (NS). The client's current weight is 183 lbs. The nurse should program the infusion pump to deliver how many ml/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Answer and Explanation

The Correct Answer is ["40"]

Calculating the Inamrinone Infusion Rate

Step 1: Convert weight to kilograms:

183 lbs x (1 kg / 2.20462 lbs) ≈ 83.0 kg

Step 2: Calculate the desired dose rate in mcg/minute:

8 mcg/kg/minute x 83.0 kg ≈ 664 mcg/minute

Step 3: Calculate the concentration of inamrinone in the IV solution:

0.1 grams/100 mL = 100 mg/100 mL = 1 mg/mL

Step 4: Calculate the infusion rate in mL/hour:

First, convert mcg to mg:

664 mcg x (1 mg / 1000 mcg) = 0.664 mg/minute

Then, set up a proportion:

x mL/hour / 0.664 mg/minute = 60 minutes/hour / 1 mg/mL

Cross-multiply and solve for x:

x mL/hour = 0.664 mg/minute x 60 minutes/hour / 1 mg/mL

x mL/hour ≈ 40 mL/hour

Therefore, the nurse should program the infusion pump to deliver approximately 40 mL/hour.

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Naxlex Comprehensive Predictor Exams

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Free Nursing Study Resources

Correct Answer is ["499"]

Explanation

Calculating the Lactated Ringer's Infusion Rate

Step 1: Convert pounds to kilograms:

110 pounds x (1 kg / 2.20462 pounds) ≈ 49.9 kg

Step 2: Calculate the total fluid requirement for 24 hours using the Parkland formula:

Total Fluid (mL) = 4 mL/kg/%TBSA x Body Weight (kg) x %TBSA

Total Fluid = 4 mL/kg/%TBSA x 49.9 kg x 40%

Total Fluid = 7984 mL

Step 3: Calculate the fluid volume for the first 8 hours:

First 8 Hours Fluid = Total Fluid / 2

First 8 Hours Fluid = 7984 mL / 2

First 8 Hours Fluid = 3992 mL

Step 4: Calculate the infusion rate for the first 8 hours:

Infusion Rate (mL/hour) = First 8 Hours Fluid / 8 hours

Infusion Rate = 3992 mL / 8 hours

Infusion Rate ≈ 499 mL/hour

Therefore, the nurse should set the infusion pump to deliver approximately 499 mL/hour during the first 8 hours.

Correct Answer is ["100"]

Explanation

To calculate the amount of ammonium chloride needed, we can use the following formula:

Amount of Ammonium Chloride (mEq) = Concentration (mEq/mL) x Volume (mL)

Plugging in the given values:

Amount of Ammonium Chloride = 0.2 mEq/mL x 500 mL

Amount of Ammonium Chloride = 100 mEq

Therefore, the nurse should use 100 mEq of ammonium chloride to prepare the solution.

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["499"]

Explanation

Correct Answer is ["100"]

Explanation

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An adult client with myasthenia gravis is receiving pyridostigmine (Mestinon) 126 mg PO every 4 hours. The drug is available as 60 mg in 5 ml syrup. How many ml should the nurse administer? (If rounding is required, round to the nearest tenth.)

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