Practice Quiz

CEN Practice Exam (Certified Emergency Nurse)

Category - Patient Care

Start a Study Session Sign up for Question of the Day
You are preparing to give potassium chloride 30 mEq in 1000 ml of normal saline over 10 hours. The medication label reads 40 mEq per 20 mL. How many milliliters of potassium chloride do you need to administer the correct dose?
  1. 10 mL
  2. 15 mL
  3. 20 mL
  4. 50 mL
Explanation
Answer: B - The nurse would prepare 15 ml of potassium chloride.
Desired dose: 30 mEq

Available concentration: 40 mEq (Units) per 20 mL (Volume)

(Desired dose ÷ Available concentration (units)) × Available concentration (volume) = Milliliters per desired dose

(30 mEq ÷ 40 mEq) × 20 mL = 0.75 × 20 mL = 15 mL
Previous Next
Was this helpful? Upvote!
Login to contribute your own answer or details
Start a Study Session Sign up for Question of the Day

Top questions

Related questions

Most popular on PracticeQuiz