What is considered "concentrated" in terms of potassium chloride? We have 100ml bags of potassium chloride in strengths of 20 and 40 mEq. The bag label states that it is concentrated. Must these be kept out of patient care areas?  What is considered concentrated in terms of sodium chloride?  

Any examples are for illustrative purposes only.

For potassium chloride, strengths of 2 mEq/ml or greater (specifically, vials of 20mEq/10ml and 40mEq/20ml) are considered concentrated. The bags noted in the question are not considered concentrated and may be stored in patient care areas. For sodium chloride (NaCl), strengths greater than 0.9% are considered concentrated.