Adenosine Deaminase (ADA) Test, Serum
- Category
- Infection
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 2 days
- Fasting
- No Fasting
- Age
- 5+ Years
What Is This Test?
Measures adenosine deaminase (ADA) in blood.
Why this test is performed?
Used in some cases to support evaluation of tuberculosis and certain immune conditions; fluid ADA is generally more useful for TB.
Who should take this test?
Fever, rash, jaundice, suspected exposure to infection, before surgery or pregnancy, as advised by a doctor.
Test Preparation
No fasting needed.
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.
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Frequently asked questions
Fluid ADA (pleural, ascitic, CSF) is more reliable for TB diagnosis.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 11–35 hours after the sample reaches the lab. You will receive the report online.
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