An Electrolyte Profile Test measures the levels of key electrolytes in your blood, including sodium, potassium, and chloride. These electrolytes are essential for maintaining fluid balance, nerve function, and muscle activity. Imbalances in these electrolytes can lead to various health issues. Symptoms of electrolyte imbalance may include fatigue, weakness, shortness of breath, and muscle cramps. This test helps detect such imbalances and can guide treatment to restore normal electrolyte levels in the body.