The maximum concentration of potassium delivered central line is: (A) 20 mmol/L, (B) 40 mmol/L, (C) 60 mmol/L, (D) 80 mmol/L
Answer is A. In adults, the preferred concentration central line is 20 mEq/100 ml. The maximum concentration for fluid restricted patients is 20 mEq/50 ml. Ref Davidson 23rd edition pg 345