Hyperkalemia can be difficult to diagnose clinically since complaints may be vague. With non-specific findings, hyperkalemia often is an incidental laboratory finding. Clinical manifestations depend on both the severity as well as the rate of increase in potassium concentration. Patients with hyperkalemia may present as asymptomatic or may report weakness, generalized fatigue, paresthesias, paralysis or even cardiac arrest [3,8,9]. Patient history is most valuable in identifying conditions that may predis- pose hyperkalemia.