Description
Overview: Chlamydia trachomatis is one of the most common sexually transmitted infections (STIs). While an active infection is usually detected via a urine test or swab (PCR), this blood test looks for IgG antibodies, which the body produces after an infection has occurred.
Clinical Significance:
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Past Exposure vs. Active Infection: IgG antibodies can persist in the blood for years. A positive result indicates that the patient has been infected with Chlamydia at some point in their life, even if the infection was treated or had no symptoms.
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Fertility & Tubal Health: This test is a crucial tool for fertility specialists. A positive IgG result suggests a higher risk of Tubal Factor Infertility (blocked or damaged fallopian tubes) caused by a past Pelvic Inflammatory Disease (PID) episode.
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Ectopic Pregnancy Risk: Past chlamydia infections increase the risk of ectopic pregnancy; this test helps assess that risk history.
When is this test recommended?
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As part of a comprehensive Fertility Check for women having trouble conceiving.
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To screen for “silent” past infections that may have caused internal scarring.
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Note: To diagnose a current, active infection requiring antibiotic treatment, a PCR Swab or Urine test is usually preferred over this blood test.
Sample Requirements:
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Specimen: Serum.
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Container: Gold Top (SST) or Red Top Tube.
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Preparation: No fasting required.
