What is the Bicarbonate / eCO₂ Test?

The Bicarbonate (HCO₃⁻) / eCO₂ Test measures the level of bicarbonate, an important electrolyte that helps maintain the body’s acid-base (pH) balance. It is often included in electrolyte panels and helps evaluate conditions related to the kidneys, lungs, and metabolism.

Who should take this test?

• Patients with suspected acid-base imbalance.
• Individuals with kidney or lung disorders.
• People with electrolyte imbalance.
• Patients with symptoms like breathing difficulty, confusion, or fatigue.
• Doctor-advised monitoring of metabolic or respiratory conditions.

Preparation & Test Process

How to interpret results

The test reports the level of bicarbonate (HCO₃⁻) or total CO₂.

High levels may indicate metabolic alkalosis or compensation for respiratory acidosis.
Low levels may suggest metabolic acidosis or kidney dysfunction.

Results should be interpreted along with other electrolytes and clinical findings.

FAQs – Bicarbonate / eCO₂ Test