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Chlamydia Antigen
Aka: Chlamydia Antigen
- Indication
- Chlamydia screening
- Detection
- Methods
- Direct Fluorescent Antibody (DFA)
- Enzyme Immunoassay (EIA)
- Mechanism
- Detects both live and dead organisms
- Positive test may be seen in recent treatment
- Technique
- Eye Sample
- Topical Eye Anesthetic applied
- Swab lower and upper lids (inner surface)
- Urethral Samples (Males)
- Patient should not urinate within 1 hour before test
- Insert small Dacron swab 2-4 cm into Urethra
- Cervical Samples
- Wipe Cervix to remove excess mucus
- Insert Dacron swab into endocervix
- Rotate swab for 5 to 10 seconds
- Withdraw swabs without touching any vaginal surface
- Rectal Samples (symptomatic patients)
- Insert Dacron swab 3 cm into anal canal
- Withdraw swab
- Fecal contaminated samples should be redone
- Efficacy (DFA, EIA)
- Sensitivity: 88-91%
- Specificity: 97-99%