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.)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.25"]
Explanation
Let’s calculate step by step:
Convert weight to kilograms
55lb÷2.2=25kg
Determine dose in mg
0.01mg/kg×25kg=0.25mg
Available concentration
1mg/mL
Calculate volume to administer
0.25mg1mg/mL=0.25mL
Final Answer: 0.25
Correct Answer is ["4.7"]
Explanation
The healthcare provider prescribes ampicillin 140 mg intravenously (IV) every 8 hours for a child with meningitis.
The vial is labeled "ampicillin 250 mg for intravenous (IV) use" and requires reconstitution with 83 mL of sterile normal saline for injection to yield a total solution concentration of 30 mg/mL.
This means that for every mL of the solution, there is 30 mg of ampicillin.
To administer a dose of 140 mg, the nurse should give the child 4.7 mL of the solution (140 mg ÷ 30 mg/mL = 4.7 mL).
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