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Torch Panel IgM Extended Test

DNA Labs India | ISO 9001:2015 Certified

Torch Panel IgM Extended Test

Short Name: TORCH Panel IgM Extended

Also known as: TORCH Profile IgM Extended, TORCH IgM Extended Panel, Toxoplasma, Rubella, CMV, HSV-1, HSV-2 IgM Panel

Torch Panel IgM Extended Test test available at DNA Labs India for ₹3,500. Uses CLIA, EIA on Serum samples. Results in Reports are available the same day if the sample reaches the laboratory by 9 am on the scheduled collection days (Tuesday/Friday).. Free home collection in 300+ cities across India.

IgM antibody panel🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr Kothari Ramesh Shantilal

Dr Kothari Ramesh Shantilal

Consultant Microbiologist · Reg: 27670

Last reviewed: September 7, 2026

Overview

The purpose of the TORCH Panel IgM Extended test is to detect the presence of IgM antibodies against Toxoplasma gondii, Rubella virus, Cytomegalovirus, Herpes Simplex Virus type 1 and type 2. Detection of these antibodies helps physicians evaluate a suspected acute or recent infection in pregnant women, newborn infants with symptoms of congenital infection, and immunocompromised individuals.

Test Code
3700
Price
₹3,500
Sample Type
Serum
Result Time
Reports are available the same day if the sample reaches the laboratory by 9 am on the scheduled collection days (Tuesday/Friday).
Fasting Required
No
Method
CLIA, EIA
Step 1

Sample Collection

No special preparation is required. Inform your doctor about any current medications, recent vaccinations, blood transfusions, or known infections.

Method: Venipuncture

Step 2

Laboratory Analysis

A trained phlebotomist will draw a small amount of blood from a vein in your arm into a serum separator tube. The procedure takes only a few minutes.

Step 3

Report Delivery

You can resume your daily activities immediately. Mild soreness or bruising at the puncture site is normal and usually resolves quickly.

Timeline: Reports are available the same day if the sample reaches the laboratory by 9 am on the scheduled collection days (Tuesday/Friday).

Patient Instructions

1
Before the Test:No special preparation required. Inform your healthcare provider about any medications, recent vaccinations, blood transfusions, or known infections.
2
During the Test:A blood sample will be collected from a vein in your arm. Minimal discomfort may be felt at the puncture site.
3
After the Test:No restrictions are needed after the blood draw. Pressure should be applied to the site for a minute to prevent bruising.

About This Test

Who Should Get This Test

The purpose of the TORCH Panel IgM Extended test is to detect the presence of IgM antibodies against Toxoplasma gondii, Rubella virus, Cytomegalovirus, Herpes Simplex Virus type 1 and type 2. Detection of these antibodies helps physicians evaluate a suspected acute or recent infection in pregnant women, newborn infants with symptoms of congenital infection, and immunocompromised individuals.

How to Prepare

  • Collect 3 mL blood in a Serum Separator Tube (SST)
  • Allow the blood to clot completely before centrifugation
  • Ship refrigerated or frozen as per the transport guidelines

Doctor's Notes

Reviewed by — MBBS, MD (Microbiology) · Reg. No. 27670

"Positive TORCH IgM results should never be interpreted alone. Clinical context, confirmatory tests such as IgG avidity or PCR, and obstetric or infectious disease consultation are essential, especially in pregnancy."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeSerum
Sample Volume3 mL (1.5 mL min.)
Container1 SST (Serum Separator Tube)
Collection MethodVenipuncture

Sample Stability

Room temperature: 2 hours
Refrigerated: 4 days
Frozen: 4 weeks
Sample Rejection Criteria:
  • Grossly hemolyzed or severely lipemic specimens
  • Improperly labeled sample tubes
  • Sample collected in the wrong anticoagulant tube
  • Sample delayed beyond the recommended stability period

Understanding Your Results

Interpretation of TORCH IgM results requires clinical correlation. IgM antibodies indicate a recent or possibly active infection, but false positive and false negative results can occur. A reactive result should never be used alone for diagnosis of fetal infection.
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Reactive IgM may suggest recent toxoplasma infection. Confirm with Toxoplasma IgG seroconversion, IgG avidity, and clinical history. Non-reactive is reported as negative.

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Reactive IgM may indicate recent rubella infection or recent vaccination. IgG seroconversion and clinical findings are important for confirmation.

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Reactive IgM may suggest primary CMV infection, reactivation, or reinfection. CMV IgG avidity and PCR are useful confirmatory tests.

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Reactive IgM suggests recent or recurrent HSV-1 infection. Clinical examination and viral typing may be needed.

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Reactive IgM suggests possible HSV-2 infection. Cross-reactivity with HSV-1 can occur, so confirmatory testing is recommended.

⚠️ When to Consult a Doctor:

If you are pregnant and your TORCH IgM test is positive or equivocal, consult your obstetrician and an infectious disease specialist promptly. Similarly, if a newborn has abnormal TORCH IgM results, urgent pediatric evaluation is required.

Limitations

  • ⚠A positive IgM result does not always indicate acute infection; IgM may persist for months
  • ⚠A positive IgM result alone does not accurately predict fetal infection
  • ⚠Confirmatory testing such as IgG seroconversion, IgG avidity, or PCR is often required
  • ⚠False negative IgM results may occur in immunocompromised patients

Risks & Considerations

  • ●Minor pain or bruising at the needle site
  • ●Dizziness or lightheadedness
  • ●Rare risk of infection or excessive bleeding at the puncture site

Interfering Factors

  • ●Rheumatoid factor can cause false positive IgM results
  • ●Cross-reactivity between HSV-1 and HSV-2 antibodies
  • ●Recent blood transfusion or immunoglobulin therapy may interfere with immunoassays
  • ●Gross hemolysis, lipemia, or high bilirubin may affect EIA testing

Frequently Asked Questions

What is the TORCH Panel IgM Extended test?
The TORCH Panel IgM Extended test is a blood test that detects IgM antibodies against Toxoplasma gondii, Rubella virus, Cytomegalovirus, Herpes Simplex Virus type 1, and Herpes Simplex Virus type 2.
Which infections does the extended TORCH panel detect?
It detects five major pathogens: Toxoplasmosis, Rubella, Cytomegalovirus, HSV type 1, and HSV type 2.
Who should get the TORCH Panel IgM Extended test?
It is often recommended for pregnant women, newborns with signs of congenital infection, immunocompromised patients, and individuals with suspected recent TORCH exposure.
Do I need to fast before the TORCH Panel IgM Extended test?
No, fasting is not required for this test. No special preparation is needed.
What does a positive TORCH IgM result mean in pregnancy?
A positive IgM result may suggest a recent or acute infection, but it does not alone predict fetal infection. More confirmatory testing is needed before making any clinical decision.
Can IgM remain positive after recovery from TORCH infection?
Yes, IgM antibodies may persist for weeks to months after the initial infection. Therefore, a positive IgM result does not always mean the infection is currently active.
What sample type is needed for this test?
A serum sample of 3 mL is needed, collected in a Serum Separator Tube (SST). A minimum of 1.5 mL is accepted.
How is the TORCH Panel IgM Extended test performed?
A small amount of blood is drawn from a vein in your arm. The serum is sent to the laboratory and tested using CLIA or EIA techniques.
How long does it take to get the report?
Reports are available the same day if the sample is received by 9 am on the scheduled days, which are Tuesday and Friday.
Is home sample collection available for this test?
Yes, DNA Labs India offers free home sample collection for online bookings of the TORCH Panel IgM Extended test in many cities across India.
How much does the TORCH Panel IgM Extended test cost at DNA Labs India?
The test costs Rs 3500 at DNA Labs India, which includes laboratory testing and home sample collection in eligible locations.
Should I get both IgG and IgM TORCH panels?
In many clinical situations, testing both IgG and IgM is helpful. IgG suggests past infection or immunity, while IgM may indicate recent infection. Your doctor will decide the most appropriate combination.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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