Adenosine Deaminase (ADA) (CSF)

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The ADA CSF test measures adenosine deaminase levels in cerebrospinal fluid to support the diagnosis of tuberculous meningitis.

₹549.00    ₹800.00

Adenosine Deaminase (ADA) is an enzyme involved in purine metabolism and is a marker of cell-mediated immune response, particularly T-lymphocyte activation. Measurement of ADA levels in cerebrospinal fluid (CSF) is especially useful in patients with suspected tuberculous meningitis (TBM).

Elevated ADA levels in CSF help differentiate tuberculous meningitis from other causes of meningitis such as viral or bacterial infections. The ADA CSF test is a rapid, cost-effective supportive diagnostic tool, commonly interpreted along with CSF cell counts, protein, glucose levels, microbiological tests (AFB stain, GeneXpert), neuroimaging, and clinical findings for accurate diagnosis.

Frequently Asked Questions

It is used to support the diagnosis of tuberculous meningitis.

High ADA levels strongly suggest tuberculous meningitis.

No fasting is required.

No fasting is required.

Rarely, it may be mildly elevated in other inflammatory conditions, so clinical correlation is necessary.

No, it is a supportive test and should be interpreted with other diagnostic findings.

CSF is collected by lumbar puncture performed by a trained medical professional.