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Lab Manual for UCSF Clinical Laboratories

Lab Manual for SFGH

Internal Resources


Item Value
Available Stat? No
Test code MC
Performed by? Microbiology (AFB)
Sendout? no
Price range $$
In House Availability 7 days
Principle Specimen is concentrated if volume received is > 3 mL. Acid-fast smears are not routinely performed on CSF, and are available by special request only. The sediment is inoculated into AFB culture media and incubated for up to 8 weeks. Negative cultures are finalized 8 weeks. Positive cultures are reported as soon as AFB are recovered.
Container type sterile, screw-capped tube
Amount to Collect 5-10 mL (3 mL minimum). Usually only a few tubercle bacilli are present in CSF from patients with tuberculous meningitis. For this reason, a large sample of CSF should be submitted whenever possible when tuberculous meningitis is suspected.
Sample type CSF
Synonyms Cerebrospinal Fluid (CSF) Culture;CSF;
References Kent, PT and GP Kubica. 1985. Public Health Mycobacteria: A Guide for the Level III Laboratory. U.S. Department of Health and Human Services. CDC. Atlanta GA.
Last Updated 11/13/2010 1:49:42 PM
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