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A client is receiving a secondary IV infusion of potassium chloride (KCI) 30 mEq at a rate of 10 mEq an hour. The pharmacy dispenses a 100 mL of 0.9% normal saline (NS) containing KCI 30 mEq. 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 ["33"]

Rationale:

Given:

Total dose of Potassium Chloride: 30 mEq

Volume of solution: 100 mL

Infusion rate: 10 mEq/hour

Step 1: Determine the concentration of Potassium Chloride in the solution:

Concentration (mEq/mL) = Total Potassium Chloride (mEq) / Volume of solution (mL)

Concentration (mEq/mL) = 30 mEq / 100 mL

Concentration (mEq/mL) = 0.3 mEq/mL

Step 2: Calculate the infusion rate in mL/hr:

Infusion rate (mL/hr) = Infusion rate (mEq/hr) / Concentration (mEq/mL)

Infusion rate (mL/hr) = 10 mEq/hr / 0.3 mEq/mL

Infusion rate (mL/hr) = 33.33 mL/hr

Step 3: Round to the nearest whole number:

Infusion rate (mL/hr) ≈ 33 mL/hr

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Free Nursing Study Resources

Correct Answer is ["7"]

Explanation

Given:

Ordered dose of Nesiritide: 0.01 mcg/kg/minute

Patient weight: 155.1 pounds

Bag size: 250 mL D5W

Concentration of Nesiritide: 1.5 mg

Step 1: Convert patient weight from pounds to kilograms:

1 pound (lb) = 0.453592 kilograms (kg)

Patient weight in kg = 155.1 lbs x 0.453592 kg/lb = 70.3 kg

Step 2: Calculate the total dose of Nesiritide in mcg/minute:

Total dose (mcg/minute) = Ordered dose (mcg/kg/minute) x Patient weight (kg)

Total dose (mcg/minute) = 0.01 mcg/kg/minute x 70.3 kg

Total dose (mcg/minute) = 0.703 mcg/minute

Step 3: Convert mcg/minute to mg/hour:

Total dose (mg/hour) = Total dose (mcg/minute) x 60 minutes/hour / 1000 mcg/mg

Total dose (mg/hour) = 0.703 mcg/minute x 60 minutes/hour / 1000 mcg/mg

Total dose (mg/hour) = 0.04218 mg/hour

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

Infusion rate (mL/hour) = Total dose (mg/hour) / Concentration (mg/mL)

Infusion rate (mL/hour) = 0.04218 mg/hour / (1.5 mg/250 mL)

Infusion rate (mL/hour) = 0.04218 mg/hour x (250 mL/1.5 mg)

Infusion rate (mL/hour) = 7.03 mL/hour

Step 5: Round to the nearest whole number:

Infusion rate (mL/hour) ≈ 7 mL/hour

Correct Answer is ["0.5"]

Explanation

Given:

Ordered dose of interferon beta-1b: 0.125 mg

Vial strength: 0.3 mg

Reconstitution volume: 1.2 mL

Step 1: Determine the concentration of the reconstituted solution:

Concentration (mg/mL) = Total amount of medication (mg) / Volume of solution (mL)

Concentration (mg/mL) = 0.3 mg / 1.2 mL

Concentration (mg/mL) = 0.25 mg/mL

Step 2: Calculate the volume to be administered:

Volume (mL) = Desired dose (mg) / Concentration (mg/mL)

Volume (mL) = 0.125 mg / 0.25 mg/mL

Volume (mL) = 0.5 mL

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["7"]

Explanation

Correct Answer is ["0.5"]

Explanation

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