Anti Chlamydia Antibody Igm
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The Anti-Chlamydia IgM antibody test detects immunoglobulin M (IgM) antibodies produced by the body in early response to a Chlamydia infection
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🧪 Anti-Chlamydia Antibody IgM
Parameter | Details |
|---|---|
Test Name | Anti-Chlamydia Antibody – IgM |
Sample Type | Blood (Serum) |
Fasting Required? | ❌ No |
Method | ELISA / CLIA (Immunoassay) |
🔬 What Is This Test?
The Anti-Chlamydia IgM antibody test detects immunoglobulin M (IgM) antibodies produced by the body in early response to a Chlamydia infection.
- Chlamydia trachomatis is a sexually transmitted bacterium affecting the genital tract.
- It may also infect the eyes, lungs, or cause neonatal infections.
- IgM antibodies usually appear within 1–2 weeks of initial infection.
🧠 Organs Involved
Organ/System | Possible Involvement |
|---|---|
Reproductive organs | Cervix, urethra, testes, epididymis |
Pelvic region | Fallopian tubes, pelvic lining (can lead to PID) |
Eyes (in neonates) | Conjunctiva |
Lungs (in neonates) | Can cause pneumonia |
🎯 Why Is This Test Ordered?
Clinical Purpose | Examples |
|---|---|
Detect recent or acute infection | Especially in symptomatic individuals |
Investigate unexplained infertility | Chronic Chlamydia can lead to tubal damage |
Evaluate pelvic inflammatory disease | When other tests are inconclusive |
Neonatal screening | If pneumonia or conjunctivitis is suspected in newborns |
📊 Test Interpretation
Result | Interpretation |
|---|---|
Positive IgM | Suggests recent or active infection with Chlamydia trachomatis |
Negative IgM | Likely absence of recent infection — may be past exposure or chronic low-grade case |
IgM is generally short-lived; IgG tests are used to detect past or chronic infection.
🧪 Recommended Tests to Be Done Alongside
Test | Why? |
|---|---|
Anti-Chlamydia IgG | Assess past exposure or chronic infection |
Chlamydia NAAT (PCR) | Direct detection of bacterial DNA from urine/genital swabs |
Urine or vaginal swab culture | Confirm active infection |
CRP / ESR | Look for systemic inflammation |
Ultrasound pelvis | Evaluate pelvic inflammation in suspected PID |
❗ Clinical Notes
- IgM alone is not definitive—must be correlated with symptoms and PCR/NAAT.
- In infertility workups, both IgM and IgG testing is done to check for chronic damage.
- In neonates, the test is supportive if PCR is unavailable.
✅ Summary Table
Test Name | Anti-Chlamydia Antibody IgM |
|---|---|
Detects | Early (recent) infection with Chlamydia trachomatis |
Sample | Serum |
Used For | STI diagnosis, infertility, PID, neonatal infection |
Paired With | IgG, NAAT/PCR, CRP, ultrasound |
Interpretation | Positive = recent/active infection |
How our test process works!
