Normal potassium ranges from 3.5 to 5 mEq/L. Hypokalemia can manifest with weak peripheral pulses, orthostatic hypotension, diminished breath sounds, lethargy, confusion, and coma. EKG changes include ST depression and T wave changes. Severe hypokalemia (less than 2.5 mEq/L) can cause death without emergent treatment. The health care provider should be notified for orders. The other laboratory findings are within normal limits.