Cryptococcus Antigen Rapid Test
Short Name: Cryptococcus Ag Rapid Test
Also known as: Cryptococcal Antigen Test, Cryptococcus Ag Test
Cryptococcus Antigen Rapid Test test available at DNA Labs India for ₹1,849. Uses Immunochromatography on Serum or Cerebrospinal Fluid (CSF) samples. Results in Same-day results available for samples received by 4 pm.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Kothari Ramesh Shantilal
Consultant Microbiologist · Reg: 27670
Last reviewed: September 7, 2026
Overview
The purpose of the Cryptococcus Antigen Rapid Test is to rapidly detect Cryptococcus antigens in serum or CSF samples, enabling early diagnosis of cryptococcal infections. This is critical for initiating prompt treatment, especially in immunocompromised patients, to reduce morbidity and mortality associated with conditions like cryptococcal meningitis and pneumonia.
- Test Code
- 371
- Price
- ₹1,849
- Sample Type
- Serum or Cerebrospinal Fluid (CSF)
- Result Time
- Same-day results available for samples received by 4 pm.
- Fasting Required
- No
- Method
- Immunochromatography
Sample Collection
No special preparation is required. Inform the healthcare provider about any medications or recent treatments.
Method: Venipuncture for serum or lumbar puncture for CSF
Laboratory Analysis
For serum, blood is drawn via venipuncture; for CSF, a lumbar puncture is performed under sterile conditions.
Report Delivery
Apply pressure to the puncture site to prevent bruising. Rest if lumbar puncture is done.
Timeline: Same-day results available for samples received by 4 pm.
Patient Instructions
About This Test
Who Should Get This Test
The purpose of the Cryptococcus Antigen Rapid Test is to rapidly detect Cryptococcus antigens in serum or CSF samples, enabling early diagnosis of cryptococcal infections. This is critical for initiating prompt treatment, especially in immunocompromised patients, to reduce morbidity and mortality associated with conditions like cryptococcal meningitis and pneumonia.
How to Prepare
- Use aseptic technique for CSF collection
- Label samples correctly with patient details
- Ship serum samples refrigerated or frozen as per guidelines
- Ensure CSF is in a sterile container to avoid contamination
Doctor's Notes
Reviewed by Dr Kothari Ramesh Shantilal — MBBS, MD (Microbiology) · Reg. No. 27670
"This rapid test is essential for early detection in immunocompromised patients, such as those with HIV/AIDS, to prevent severe complications like meningitis."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Insufficient sample volume
- Improper container or labeling
- Hemolyzed or contaminated samples
- Delayed shipment beyond stability period
Understanding Your Results
Positive
Likely active cryptococcal infection; consult a specialist for confirmation and treatment.
Negative
No detectable Cryptococcus antigens; if symptoms persist, consider repeat testing or additional diagnostics.
Equivocal
Inconclusive; recommend retesting or complementary tests like culture or PCR.
Consult a doctor immediately if the test result is positive, or if symptoms such as persistent fever, headache, confusion, or respiratory issues occur, especially in immunocompromised individuals.
Limitations
- ⚠May not detect early or localized infections with low antigen levels
- ⚠False positives can occur in certain conditions like other fungal infections
- ⚠Does not differentiate between Cryptococcus species
- ⚠Requires confirmation with culture or other diagnostic methods in ambiguous cases
Risks & Considerations
- ●Minimal risk from blood draw, such as bruising or infection
- ●Rare risks from lumbar puncture include headache or spinal fluid leak
- ●Very low risk of allergic reaction to antiseptics used
Interfering Factors
- ●Hemolyzed or lipemic samples may affect accuracy
- ●Contaminated specimens can lead to false results
- ●Recent antifungal therapy may reduce antigen levels
- ●Cross-reactivity with other fungal infections is rare but possible
Frequently Asked Questions
What is the Cryptococcus Antigen Rapid Test?
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What does a positive result mean?
What is the cost of the test at DNA Labs India?
Is home collection available for this test?
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Do I need to fast before the test?
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We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.
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