Critical Potassium Level in Dialysis Patients

A 65-year-old male patient is admitted with chronic kidney disease (CKD) and is currently on dialysis. As part of the nursing assessment, laboratory values must be closely monitored to reduce risk potential. The patient's latest serum potassium level is reported at _____ mEq/L. It is essential to recognize that a normal potassium level ranges from 3.5 to 5.0 mEq/L. If the level exceeds 5.0 mEq/L, the patient is at risks such as hyperkalemia, which can lead to life-threatening cardiovascular complications.

Based on the information provided, fill in the blank with the minimum potassium level defined as critical for patients undergoing dialysis.