CRNE Exam Prep

Category - Changes in Health

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A physician orders potassium chloride 25 mEq to be added to 1000 ml of normal saline solution to be administered over an 8-hour period. The label on the potassium chloride bottle reads 40 mEq per 20 ml. The nurse determines that the correct number of milliliters of potassium chloride to be added is:

10 ml
12.5 ml
15 ml
17.5 ml

Explanation

Answer: B - To obtain the correct dose, use the medication calculation formula:
Desired_ x ml = milliliters per dose
Available

25 x 20 ml = 12.5 ml
40

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