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.)
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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Related Questions
Correct Answer is ["2000"]
Explanation
To calculate the infusion rate of magnesium sulfate, we'll follow these steps:
1. Calculate the concentration of magnesium sulfate in the IV solution:
Magnesium Sulfate Concentration = Magnesium Sulfate (g) / Solution Volume (mL)
Magnesium Sulfate Concentration = 4 grams / 250 mL
Magnesium Sulfate Concentration = 16 mg/mL
2. Calculate the magnesium sulfate infusion rate in mg/hour:
Magnesium Sulfate Infusion Rate = Infusion Rate (mL/hour) x Magnesium Sulfate Concentration (mg/mL)
Magnesium Sulfate Infusion Rate = 125 mL/hour x 16 mg/mL
Magnesium Sulfate Infusion Rate = 2000 mg/hour
Therefore, the nurse should administer 2000 mg/hour of magnesium sulfate.
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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