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Chlamydiaabtitrcsfcf

Published: August 9, 2026Updated: August 16, 2026
Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
23990-5
Short code
CHLMCFAB
Synonyms
Chlamydia Ab Titr CSF CF
Category
chemistry
Sample
csf
Container
Sterile CSF collection tube, screw-cap polypropylene, free of preservatives; preferred tube #3 or #4 from sequential lumbar puncture collection
Units
N/A
Ref low
0
Ref high
1
Fasting
false
Population
adult
Sex
all
Age range
0–120 years
Method
comp-fix
CPT
86631
SNOMED
58701000119108
Specimen volume
1.0–2.0 mL of cerebrospinal fluid
Stability
Refrigerated (2–8°C) for up to 7 days; Frozen (−20°C or colder) for up to 30 days; Avoid repeated freeze-thaw cycles; Do not store at room temperature beyond 2 hours
Hemolysis max
200
TAT
48–168 hours
Order
routine

Reference range

Titer <1:2 (Negative); Titers ≥1:2 suggest prior exposure or active infection; A fourfold rise in paired acute and convalescent titers is considered diagnosticN/A

Specimen: csf

No special patient preparation required. Inform the ordering physician of any recent antibiotic therapy, immunosuppressive medications, or recent vaccination as these may affect antibody titers

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy