What condition is indicated by a serum potassium level greater than 5.0 mEq/L?

A serum potassium level greater than 5.0 mEq/L indicates hyperkalemia. This condition reflects an excess of potassium in the bloodstream, which can disrupt normal cellular processes and cardiac function. Hyperkalemia can result from various factors, including kidney dysfunction, excessive potassium intake, or certain medications. It is critical to monitor potassium levels because elevated potassium can lead to serious complications such as arrhythmias and cardiac arrest.

When assessing electrolyte imbalances, it's essential to understand the normal ranges and implications of deviations to provide appropriate clinical care. Hyperkalemia specifically warrants immediate evaluation and intervention to prevent potential life-threatening outcomes.