The nurse is caring for a client with a serum potassium level of 3.5 mEq/L. The client is placed on a cardiac monitor and receives 40 mEq KCL in 1000 ml of 5% dextrose in water IV. Which of the following EKG patterns indicates to the nurse that the infusions should be discontinued?
A. Narrowed QRS complex
B. Shortened “PR” interval
C. Tall peaked “T” waves
D. Prominent “U” waves
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