Real-Time Polymerase Chain Reaction (RT-PCR) is the gold standard molecular technique used to detect and quantify specific DNA or RNA sequences. It offers exceptional sensitivity and specificity, making it the preferred method for diagnosing viral and bacterial infections, monitoring disease progression, and guiding treatment decisions.
| Test Category | Key Tests Offered | Clinical Application |
|---|---|---|
| Respiratory Infections | COVID-19 RT-PCR, Influenza A & B, RSV, Multiplex Respiratory Panel | Rapid diagnosis of respiratory viral infections |
| Vector-Borne Diseases | Dengue, Chikungunya, Zika Virus RT-PCR | Early detection of mosquito-borne illnesses common in Tamil Nadu |
| Tuberculosis | GeneXpert MTB/RIF (TB PCR with Rifampicin Resistance) | Rapid TB diagnosis and drug resistance detection |
| Viral Load Testing | Hepatitis B Viral Load, Hepatitis C Viral Load, HIV-1 Viral Load | Monitoring treatment response in chronic viral infections |
| Sexually Transmitted Infections | HPV DNA PCR & Genotyping, STD Multiplex PCR Panel | Screening and diagnosis of high-risk HPV and other STIs |
| Other Molecular Tests | CMV, EBV, BK Virus PCR, Bacterial & Fungal Identification | Critical testing for immunocompromised and transplant patients |
Sample Collection
A swab is used to collect respiratory material from the nose. We use both nasal swabs and nasopharyngeal swabs to collect samples. After collection, the swab is safely sealed in a tube and sent to our laboratory for testing.
Extraction
Our lab technologists extract and isolate genetic material, including that of other viruses that maybe present in the sample.
PCR Testing
In the final PCR step, we use special chemicals and a thermal cycler to make millions of copies of the SARS-CoV-2 virus's genetic material. If the sample contains the virus, the device alerts our technologists, who will also use software to interpret the result.



Get accurate molecular diagnostic results with fast reporting from Tamil Nadu’s trusted pathology laboratory.
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+91 89408 94079
Agam Diagnostics – NABL Accredited Molecular Biology & RT-PCR Laboratory in Madurai, Tamil Nadu
Accurate • Reliable • Rapid Results