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HelpTest Code ADA Adenosine Deaminase (ADA)
Laboratory Code
LAB5111
Specimen Requirements
Specimen Type: Pleural Fluid
Container/Tube: Screw-capped containers with no preservative.
Volume: 20.0 mL
Minimum volume: 1.0 mL pleural fluid
Specimen Stability
| Specimen Type | Pleural Fluid |
|---|---|
| Ambient | 8 hours |
| Refrigerate | 1 week (preferred) |
| Frozen | 1 month |
Methodology
Spectrophotometry
Days and Times Performed
Monday, Wednesday and Friday, TAT 2 - 4 days
Specimen Condition
| Gross Haemolysis | Reject |
|---|---|
| Icterus | Not applicable |
| Lipaemia | Not applicable |
|
Others: Turbid specimens, ammonium oxalate and ammonium heparinate as anticoagulants |
Reject |
Reference Interval
0 – 40 U/L
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724399
Useful For
Adjunct in the diagnosis of TB
Service Code
31959
LOINC Code Information
35704-6
Update
Last updated 24/02/2025
Test Classification
This test was developed by NUH Laboratory Medicine. This laboratory test has undergone in-house evaluation with appropriate quality assurance and control measures in line with laboratory best practice and accreditation requirements.