The Bicarbonate Test measures the level of bicarbonate in your blood, helping doctors assess your body's acid-base balance and kidney function.
Here are the basic details of the Bicarbonate Test.
Also Known As | Total CO2, TCO2, HCO3 Test |
Type | Blood Test |
Purpose | Assess Acid-Base Balance |
Sample Type | Blood |
Preparation | None |
Fasting | Typically Not Required |
Gender | Any |
Age Group | Any |
Normal Value | 22-30 mEq/L |
Reporting Time | 1-2 days |
Cost | 200-800 INR* |
*Bicarbonate Test Price range may vary as per location, lab type, and procedure of lab test.
The Bicarbonate Test evaluates the concentration of bicarbonate ions (HCO3-) in the blood.
The purpose of the Bicarbonate Test is to:
Here is the basic preparation for the Bicarbonate Test.
Here is the basic Bicarbonate Test Procedure.
Here is the basic meaning of Bicarbonate Test Result.
Here is the normal range of the Bicarbonate Test
Test Result | Reference Range |
---|---|
Bicarbonate (HCO3-) | 22 - 30 mEq/L |
Here is the Interpretation of the Bicarbonate Test.
Test Result | Interpretation |
---|---|
Low HCO3- | Metabolic acidosis or an underlying condition affecting acid-base balance. Further evaluation is needed to identify the cause. |
Normal HCO3- | HCO3- levels within expected range, typically indicating a healthy acid-base balance. |
High HCO3- | Metabolic alkalosis or another condition causing an excess of bicarbonate in the blood. Further assessment is necessary for diagnosis. |
Here are the potential causes of high levels in a Bicarbonate Test.
Potential Causes | Explanation |
---|---|
Metabolic Alkalosis | Excess bicarbonate can result from conditions such as vomiting, antacid overuse, or certain medications. |
Compensatory Response | High bicarbonate levels can occur as a compensatory response to respiratory acidosis or other conditions causing increased carbon dioxide elimination. |
Chronic Kidney Disease | Impaired kidney function can lead to reduced bicarbonate excretion, resulting in high bicarbonate levels. |
Hypokalemia | Low potassium levels can cause metabolic alkalosis, leading to elevated bicarbonate levels. |
Diuretic Use | Certain diuretic medications can disrupt acid-base balance and contribute to metabolic alkalosis. |
Here are the potential causes of low levels in a Bicarbonate Test.
Potential Causes | Explanation |
---|---|
Metabolic Acidosis | Conditions like diabetic ketoacidosis, kidney disease, or lactic acidosis can result in low bicarbonate levels. |
Respiratory Conditions | Severe lung diseases or inadequate breathing can lead to a compensatory increase in bicarbonate loss, causing low levels. |
Gastrointestinal Disorders | Diarrhea or conditions affecting the GI tract can lead to bicarbonate loss and metabolic acidosis. |
Renal Tubular Acidosis | A rare kidney disorder where the kidneys cannot effectively reabsorb bicarbonate, leading to chronic acidosis. |
Toxins or Medications | Certain substances or medications can disrupt acid-base balance and contribute to metabolic acidosis. |
Here are the specimen requirements for the Bicarbonate Test.
Specimen |
Serum |
|
Volume |
1 ml |
|
Container |
Red-top tube or gel-barrier tube |
|
Collection |
Separate serum from cells within one hour of collection. Transfer to a plastic transport tube before shipping. |
|
Storage |
Refrigerate or freeze. |
|
Sample Stability |
Temperature |
Period |
Room temperature |
7 day |
|
Refrigerated |
14 days |
|
Frozen |
60 days |
|
Freeze/thaw cycles |
Stable x1 |
|
Causes for Rejection |
Grossly hemolyzed; bacterial contamination; lipemic specimen; icteric specimen; non-serum specimen types |
Here is the basic limitation of Bicarbonate Test.
Here are some of the risk factors of the Bicarbonate Test.
Here are the Doctor's recommendations or consult a specialist after the Bicarbonate Test.
Test Result | Doctor to Visit | Reason for Visit |
---|---|---|
High | Nephrologist | Possible kidney issue. |
Normal | No specific doctor | Acid-base balance normal. |
Low | Gastroenterologist or PCP | Metabolic acidosis, investigate cause. |
Here are the estimated Bicarbonate Test Prices in India with different top cities:
City |
Price Range (INR)* |
200-800 |
|
300-800 |
|
200-800 |
|
300-800 |
|
200-800 |
|
300-800 |
|
200-800 |
|
300-800 |
|
300-800 |
|
200-800 |
|
300-800 |
|
200-800 |
|
300-800 |
|
200-800 |
*Bicarbonate Test Prices are approximate and vary depending on a specific laboratory or healthcare facility.
Summary
Overall, Bicarbonate Test is essential for evaluating acid-base balance and diagnosing conditions related to electrolyte imbalances and kidney function. Also check Drlogy Test for detailed information about all medical tests for patients, doctors, scholers and medical students.
Reference
10M+
Patients
22000+
Doctors
20000+
Hospitals/Labs
Drlogy Testclose
Copyright © 2025 Drlogy. All rights reserved.