Electrolyte Panel
The electrolyte panel groups the core electrolytes measured on standard chemistry tests: sodium, potassium, chloride, bicarbonate, and calcium. These analytes reflect fluid balance, acid-base status, renal handling, and cellular function, and are tightly regulated so their population distributions are narrow compared with most liver and metabolic markers.
Also listed under Metabolic , Renal , Electrolytes .
Frequently Asked Questions
Why are electrolytes shown together as a panel?
Sodium, potassium, chloride, and bicarbonate are interpreted as a pattern because they reflect overlapping physiology: fluid balance, renal handling, and acid-base regulation. Calcium is included because it is part of the standard chemistry profile and participates in mineral and membrane function.
Why are electrolyte distributions so narrow?
The body tightly regulates each of these analytes through hormones, kidney handling, and cellular buffering. Small deviations from the set point trigger strong physiologic responses, which keeps almost everyone within a narrow population range.