Leptospira IgG & IgM Rapid
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Detects IgG, IgM antibodies in the blood against Leptospira bacteria, which cause leptospirosis
₹599₹800
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🧪 What is Leptospira IgG & IgM Rapid Test?
The Leptospira IgG & IgM Rapid Test is a point-of-care immunochromatographic assay that detects both IgM and IgG antibodies against Leptospira in human blood, serum, or plasma.
- IgM: Indicates recent or active infection
- IgG: Indicates past exposure or late-stage infection
- The combined test helps detect both acute and past leptospirosis in one go.
❓ Why is the Test Done?
To:
- Rapidly screen for Leptospira infection
- Aid diagnosis in patients with acute febrile illness, jaundice, renal dysfunction, or hemorrhagic symptoms
- Enable field testing or early diagnosis in resource-limited settings
Commonly used in endemic regions or during monsoon outbreaks.
📊 Test Result Interpretation
Result | Interpretation |
|---|---|
IgM Positive only | Recent or current leptospiral infection |
IgG Positive only | Past infection or late convalescent stage |
Both IgM & IgG Positive | Recent infection with immune response |
Both Negative | No infection or very early phase before antibody development |
Note: A positive result should be confirmed with ELISA, MAT, or PCR in clinical settings.
📈 Clinical Interpretation
Stage | IgM | IgG |
|---|---|---|
Early (Days 3–7) | + | - |
Acute (Days 7–14) | + | +/– |
Convalescent (>14 Days) | +/– | + |
Recovered / Past Exposure | – | + |
🧠 Associated Organs & Conditions
System/Organ | Complications of Leptospirosis |
|---|---|
Kidney | Acute kidney injury (Weil’s disease) |
Liver | Jaundice, hepatitis |
Lungs | Pulmonary hemorrhage, ARDS |
Central Nervous System | Aseptic meningitis, encephalitis |
Eyes | Uveitis, conjunctival suffusion |
🔄 Related / Follow-Up Tests
- Leptospira ELISA (IgM and IgG)
- Microscopic Agglutination Test (MAT) – reference standard
- PCR for Leptospira DNA – early phase detection
- Liver and Kidney Function Tests
- CBC – for leukocytosis, thrombocytopenia
- CRP/ESR – inflammatory markers
✅ Fasting Required?
Test | Fasting Requirement |
|---|---|
Leptospira IgG & IgM Rapid | ❌ Not required |
📝 Summary Table
Parameter | Details |
|---|---|
What | Rapid detection of IgM (acute) and IgG (past) antibodies to Leptospira |
Why | Early screening in suspected leptospirosis |
Positive IgM | Recent infection |
Positive IgG | Past or late infection |
Both Negative | No infection or very early stage |
Follow-up Tests | ELISA, PCR, MAT, LFT, KFT, CBC |
Associated Organs | Kidneys, liver, lungs, CNS |
Fasting Required | ❌ No |
How our test process works!
