potassium what is a normal number
According to the Mayo Clinic, a normal range for potassium is between 3.6 and 5.2 millimoles per liter (mmol/L) of blood. A potassium level higher than 5.5 mmol/L is critically high, and a potassium level over 6.0 mmol/L can be life-threatening. This condition is dangerous, and requires prompt medical attention to prevent potential complications.