Quick highlights
- Not the preferred test for active genital chlamydia diagnosis
- NAAT/PCR from urine or swab is generally recommended for current infection
- IgM interpretation can be difficult and may produce non-specific results
- No fasting; serum blood test
- Useful only in selected specialist contexts
- A positive IgM does not automatically confirm active infection
- A negative IgM does not rule out current infection
- Clinicians may confirm with NAAT/PCR before treatment decisions
- Home blood collection available in many service areas
- SEO coverage: chlamydia IgM test, STI antibody test limitations, chlamydia PCR vs IgM
What’s included
Preparation
- Book blood draw (home or lab)
- No fasting required
- Discuss symptoms and exposure timeline with clinician
- If current infection suspected, request NAAT/PCR as advised
- Do not self-start antibiotics based on IgM alone
- Collect serum blood sample via trained phlebotomist
- Download report from <a href='/my-account/'>View reports</a>
- Review with clinician for confirmatory testing and counseling
FAQs
It may indicate recent immune response, but it is not definitive for active genital infection diagnosis.
No. NAAT/PCR is generally preferred for diagnosing active infection.
No.
Treatment decisions should be clinician-led and typically based on NAAT/PCR and clinical evaluation.
Yes, serology can be non-specific; clinicians interpret results cautiously.
Not necessarily; NAAT/PCR is used for active infection diagnosis.
Serum blood sample.
Yes in many serviceable areas.
NAAT/PCR from urine or swab is commonly preferred for chlamydia.
If active infection is diagnosed, partner evaluation is usually advised.
Often same day or within 24 hours.
Download from <a href='/my-account/'>View reports</a>.
Yes; confidentiality is maintained per lab and clinical standards.
Consult a clinician promptly for appropriate NAAT/PCR testing and management.
Notes
IgM suggests recent infection and requires confirmation.
