Adenosine Deaminase Test: Booking, Price, and Results
About Adenosine Deaminase Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | ADA Test, Adenosine Deaminase Activity Test, ADA Pleural Fluid Test, ADA Serum Test |
| Sample Type | Pleural fluid (most common); also cerebrospinal fluid, peritoneal fluid, pericardial fluid, or serum |
| Fasting Required | No fasting required |
| Report Time | 24 to 48 hours |
| Recommended For | Adults and children of all ages and genders; particularly those with suspected tuberculosis |
| Price | Starting at ₹750 |
What Is an Adenosine Deaminase Test?
The adenosine deaminase test measures the level of an enzyme called adenosine deaminase in body fluids or blood. This enzyme is closely linked to immune cell activity, making it a useful marker when tuberculosis (TB) or certain other conditions are suspected. Doctors most commonly order this test when a patient has fluid collecting around the lungs, abdomen, or heart. The ADA test is also known as the Adenosine Deaminase Activity Test or ADA pleural fluid test, depending on the sample used.
What Does an Adenosine Deaminase Test Measure?
The ADA test checks the activity of the adenosine deaminase enzyme, which plays a key role in the growth and functioning of lymphocytes (white blood cells that fight infections). The following table summarises what is measured and its significance:
| Parameter | What It Indicates |
|---|---|
| ADA in pleural fluid | Helps identify TB or other causes of fluid around the lungs |
| ADA in serum (blood) | Reflects overall immune cell activity |
| ADA in pericardial fluid | Helps detect TB or inflammation around the heart |
| ADA in peritoneal or CSF fluid | Assists in diagnosing TB in the abdomen or central nervous system |
Why Is an Adenosine Deaminase Test Done?
This test is ordered when a doctor suspects TB or needs to find the cause of abnormal fluid build-up in the body.
Common Symptoms That May Require This Test
Your doctor may recommend an ADA test if you experience any of the following symptoms:
- Persistent or chronic cough
- Chest pain or tightness
- Shortness of breath
- Fever lasting several days
- Night sweats
- Unexplained weight loss
- Fatigue without a clear cause
Conditions This Test Can Help Detect
The adenosine deaminase test can help identify a range of conditions. These include:
- Tuberculosis (TB), particularly extrapulmonary TB affecting the lungs, abdomen, heart lining, or central nervous system
- Lymphoma (cancer of the lymphatic system)
- Sarcoidosis (an inflammatory condition affecting multiple organs)
- Lupus (an autoimmune condition)
- Pulmonary embolism (a blood clot in the lungs)
- Parapneumonic effusions (fluid around the lungs due to pneumonia) and empyema (pus in the pleural space)
- ADA deficiency, a rare genetic disorder that affects immune function and can cause severe combined immunodeficiency (SCID)
How to Prepare and What to Expect
This test requires very little preparation, but knowing what to expect beforehand can help you feel at ease.
Do You Need to Fast?
No fasting is needed before an adenosine deaminase test. You can eat and drink normally before your appointment.
Practical Tips Before Your Test
Here are a few simple steps to prepare:
- Tell your doctor about all medications you take, as blood thinners and other drugs may affect the procedure.
- Inform your doctor of any allergies or bleeding disorders.
- Wear loose, comfortable clothing that allows easy access to the chest or back area.
- Consider bringing a companion, as the anaesthetic used during the procedure may cause mild dizziness afterwards.
Step-by-Step Procedure
The sample collection for an ADA pleural fluid test involves a procedure called thoracentesis. Here is what happens:
- You will sit upright, usually on the edge of a bed or chair, with your head and arms resting forward on a table.
- The skin over the procedure site (between the ribs at the back of the chest) is cleaned, and sterile drapes are placed around the area.
- A local anaesthetic is injected to numb the area so you feel minimal discomfort.
- A fine needle is carefully inserted into the pleural space (the area around the lungs) to draw out a small amount of fluid. Ultrasound may be used to guide the needle.
- The needle is removed, and a small bandage is applied to the site.
- The collected fluid is labelled and sent to the laboratory for analysis.
Factors That Can Affect Accuracy
Several factors can influence the reliability of your results:
- Poor sample collection technique or contamination during handling
- Delays in transporting the sample to the laboratory
- Patient dehydration at the time of collection
- Recent blood transfusions, which may affect enzyme activity readings
- Concurrent infections or inflammatory conditions
Understanding Your Adenosine Deaminase Test Results
Your results should always be reviewed alongside your symptoms and medical history. The table below provides general reference ranges for different sample types.
| Sample Type | Normal Range (U/L) |
|---|---|
| Pleural Fluid | 0 to 40 |
| Serum (Blood) | Less than 40 |
| Pericardial Fluid | 0 to 11.3 (normal); greater than 40 suggests TB |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain situations can make results harder to interpret.
- If the fluid sample contains predominantly neutrophils (a type of white blood cell) rather than lymphocytes, ADA levels are naturally higher, and the test is not a reliable indicator of TB in such cases.
- Patients who have recently received a blood transfusion may show masked ADA deficiency.
- Conditions such as empyema, parapneumonic effusions, and certain cancers can raise ADA levels without any TB being present.
How to Maintain Healthy Levels
These general wellness tips support good immune and respiratory health:
- Follow a balanced diet with adequate vitamins and minerals to support immune function.
- Seek timely medical attention for persistent respiratory symptoms such as chronic cough, chest pain, or breathlessness.
- If you are in a high-risk environment for TB, take preventive steps such as ensuring proper ventilation and minimising close contact with active TB patients.
Lupin Diagnostics Adenosine Deaminase Test Price and Home Collection
The adenosine deaminase test price starts at approximately ₹750, and home sample collection is available across multiple cities in India.
| City | Approximate Price (₹) |
|---|---|
| Mumbai | ₹750 |
| Bengaluru | ₹750 |
| Chennai | ₹750 |
| Hyderabad | ₹750 |
| Kolkata | ₹750 |
| Pune | ₹750 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Follow these steps to book your ADA test:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home sample collection for the adenosine deaminase test across cities in India. All samples are processed in NABL-accredited laboratories by trained professionals. Digital reports are accessible via email or WhatsApp within 24 to 48 hours of sample collection.
Frequently Asked Questions
The ADA test is primarily used to help diagnose tuberculosis in body fluids, most often pleural fluid (the fluid around the lungs). It may also be used on other samples, such as cerebrospinal fluid or peritoneal fluid, when TB or related conditions are suspected in those areas.
The Adenosine Deaminase test is a useful supportive tool but does not confirm TB on its own. It is used alongside other tests, such as bacterial cultures, to reach a diagnosis. A positive result indicates that TB is likely, but further testing is usually needed for confirmation.
A low ADA level makes TB of the pleurae unlikely, but it does not rule out TB in other body parts. Your doctor will consider the full clinical picture, including symptoms and other test results, before drawing any conclusion.
Thoracentesis is a common, low-risk procedure. Possible complications include mild bleeding, temporary discomfort, fluid reaccumulation, or, rarely, a partial collapse of the lung (pneumothorax). Your doctor will explain these risks before the procedure and take steps to minimise them.
Yes, elevated ADA levels can occur in several other conditions, including lymphoma, sarcoidosis, lupus, bacterial infections causing empyema, and parapneumonic effusions. This is why results are always interpreted together with symptoms, imaging, and other diagnostic tests.
Reports for the ADA test booked through Lupin Diagnostics are typically available within 24 to 48 hours of sample collection. You will receive your report digitally via email or WhatsApp.
Adenosine Deaminase Test: Booking, Price, and Results
