Torch Panel IgG Test
Short Name: TORCH Panel IgG
Also known as: TORCH Profile IgG, TORCH IgG Panel, Toxoplasma, Rubella, CMV, HSV IgG Test
Torch Panel IgG Test test available at DNA Labs India for ₹1,521. Uses CLIA on Serum samples. Results in Reports are generally available daily; exact time may vary by collection centre.. 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
Toxoplasma IgG in serum of a person with an eye lesion helps in diagnosing ocular toxoplasmosis. Persistent or increasing IgG antibody levels in the infant compared with the mother and/or positive Toxoplasma-specific IgM or IgA are diagnostic of congenital toxoplasmosis. Demonstration of rising antibody titre (four-fold) in acute and convalescent sera taken 2-3 weeks apart is indicative of postnatal rubella infection and to check response to rubella vaccination. CMV IgG is useful in screening organ transplant recipients and donors before transplantation and donors of blood products administered to premature infants and bone marrow transplant patients. Positive HSV (1+2) IgG indicates past infection with Herpes simplex virus or administration of HSV immunoglobulins.
- Test Code
- 3710
- Price
- ₹1,521
- Sample Type
- Serum
- Result Time
- Reports are generally available daily; exact time may vary by collection centre.
- Fasting Required
- No
- Method
- CLIA
Sample Collection
No special preparation is required. Inform your doctor about any medications, recent blood transfusions or immunoglobulin therapy.
Method: Venipuncture
Laboratory Analysis
A qualified phlebotomist will collect a blood sample from a vein in your arm. The procedure takes only a few minutes.
Report Delivery
You can resume normal activities immediately. If there is bruising or soreness, apply a cold compress at the puncture site.
Timeline: Reports are generally available daily; exact time may vary by collection centre.
Patient Instructions
About This Test
Who Should Get This Test
Toxoplasma IgG in serum of a person with an eye lesion helps in diagnosing ocular toxoplasmosis. Persistent or increasing IgG antibody levels in the infant compared with the mother and/or positive Toxoplasma-specific IgM or IgA are diagnostic of congenital toxoplasmosis. Demonstration of rising antibody titre (four-fold) in acute and convalescent sera taken 2-3 weeks apart is indicative of postnatal rubella infection and to check response to rubella vaccination. CMV IgG is useful in screening organ transplant recipients and donors before transplantation and donors of blood products administered to premature infants and bone marrow transplant patients. Positive HSV (1+2) IgG indicates past infection with Herpes simplex virus or administration of HSV immunoglobulins.
How to Prepare
- Collect 3 mL serum in an SST; minimum 1.5 mL is acceptable
- Label the sample vial with the patient's correct identity
- Transport the sample in a cold pack
- Separate serum and refrigerate or freeze within the stated stability period
Doctor's Notes
Reviewed by Dr Kothari Ramesh Shantilal — MBBS, MD (Microbiology) · Reg. No. 27670
"TORCH IgG screening in pregnancy is a useful baseline to identify susceptible women. If IgG is negative, consider counselling about avoidance and repeat serology if symptoms develop. If IgG is positive, past immunity is likely and no further IgG follow-up is usually needed."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Grossly hemolyzed sample
- Improperly labeled sample
- Sample received outside the stability window
- Wrong sample container or non-serum specimen
Understanding Your Results
Non-reactive
No detectable antibody; susceptible to primary Toxoplasma infection
Reactive
Past or current infection; correlate with clinical and IgM findings
Non-reactive
No immunity; vaccination may be indicated before pregnancy
Reactive
Past infection or vaccination; immunity present
Non-reactive
No past infection; risk for primary infection
Reactive
Past infection; important for transplant screening and prenatal risk assessment
Non-reactive
No detectable antibodies to HSV-1 or HSV-2
Reactive
Past HSV infection or prior administration of HSV immunoglobulins
If you are pregnant, planning pregnancy, or experiencing symptoms such as fever, rash, swollen lymph nodes, joint pain or fatigue, consult your gynecologist or infectious disease specialist for TORCH testing and appropriate management.
Limitations
- ⚠IgG alone does not distinguish recent from past infection; paired or serial samples may be required
- ⚠A single positive IgG result does not confirm active infection
- ⚠IgM testing is preferred when acute or congenital TORCH infection is suspected
- ⚠All results must be interpreted in the context of clinical findings and gestational age
Risks & Considerations
- ●Mild pain or bruising at the needle site
- ●Bleeding or hematoma (rare)
- ●Infection at the puncture site (very rare)
Interfering Factors
- ●Recent administration of immunoglobulins may affect IgG results
- ●Grossly hemolyzed, lipemic or icteric samples may interfere with the assay
- ●Testing during the seroconversion window may produce false-negative results
- ●In infants, maternal IgG crossing the placenta can cause positive IgG results
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Frequently Asked Questions
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