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A client with dehydration is prescribed a potassium chloride infusion at 10 mEq/hr. Potassium chloride 80 mEq is mixed with 1 liter of normal saline. The nurse should regulate 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 ["125"]

To calculate the infusion rate in mL/hour, we'll use the following formula:

Infusion Rate (mL/hr) = Desired Dose (mEq/hr) / Concentration of Potassium Chloride (mEq/mL)

1. Calculate the concentration of potassium chloride:

Concentration = 80 mEq / 1000 mL = 0.08 mEq/mL

2. Plug in the values:

Infusion Rate (mL/hr) = 10 mEq/hr / 0.08 mEq/mL

3. Calculate:

Infusion Rate (mL/hr) = 125 mL/hr

Therefore, the nurse should regulate the infusion pump to deliver 125 mL/hour.

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Correct Answer is ["75"]

Explanation

The healthcare provider prescribes an IV solution of isoproterenol 1 mg in 250 mL of Dextrose in Water (D/W) at a rate of 300 mcg/hour.

Since 1 mg is equal to 1000 mcg, the solution contains 1000 mcg of isoproterenol in 250 mL.

This means that for every mL of the solution, there is 4 mcg of isoproterenol (1000 mcg / 250 mL = 4 mcg/mL).

To administer a dose of 300 mcg/hour, the nurse should program the infusion pump to deliver 75 mL/hour (300 mcg/hour ÷ 4 mcg/mL = 75 mL/hour).

Correct Answer is ["6"]

Explanation

To calculate the infusion rate in mL/hour, we can use the following formula:

Infusion rate (mL/hour) = Dose (mg/minute) x 60 / Concentration (mg/mL) In this case, the dose is 2 mg/minute and the concentration is:

200 mg/40 mL = 5 mg/mL

We can calculate the infusion rate as follows:

2 mg/minute x 60 / 5 mg/mL = 24 mL/hour

However, the total volume of the solution is 200 mL. Therefore, we need to adjust the infusion rate to ensure that the medication is infused over the correct time period. If we divide the total volume by the infusion time, we can calculate the infusion rate required to deliver the medication over that time period:

200 mL / (120 minutes) = 100 mL/hour

So we need to adjust our initial calculation to ensure that we are infusing at a rate of 100 mL/hour. We can do this by using a proportion:

2 mg/minute x 60 / 5 mg/mL = X mL/hour x 1 Solving for X gives us:

X = (2 x 60 x 1) / 5 = 24 mL/hour

So we should program the infusion pump to deliver 6 mL/hour.

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Naxlex Comprehensive Predictor Exams

The healthcare provider prescribes an IV solution of isoproterenol 1 mg in 250 mL of Dextrose in Water (D/W) at a rate of 300 mcg/hour. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only.)

Correct Answer is ["75"]

Explanation

Correct Answer is ["6"]

Explanation

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