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FTA-ABS

Item Value
Clinical Questions Does my patient have syphilis?
Approval req'd? Yes, contact Immunology x3-1712
Available Stat? No
Test code FTAC
Performed by Quest
Sendout? Yes
Method Indirect Fluorescence Assay
Container type CSF tube or sterile collection tube
Amount to Collect See preferred volume
Sample type CSF
Preferred volume 1 mL CSF
Min. Volume 0.3 mL CSF
Processing notes Refrigerate. Order test Quest test # 17088X
Normal range Nonreactive
Synonyms Fluorescent Treponemal Antibody Adsorption
Turn around times Test performed Monday-Friday, turnaround time: 1-4 days
Additional information The VDRL test is the only serological assay which is approved for use in CSF. In patients suspected of neurosyphilis but with a non-reactive VDRL result, the FTA-ABS test may be useful in some cases. The FTA-ABS test has high sensitivity but is nonspecific with a high rate of false positive results in CSF.

References:
Birnbaum NR, Goldschmidt RH and Buffett WO. 1999. Resolving the common clinical dilemmas of syphilis.

Amer. Fam. Physician 59(8):2230-2240, 2245-2246. Sexually transmitted diseases treatment guidelines 2002.

MMWR May 10, 2002, Vol. 51, No. RR-6,Center for Disease Control and Prevention.
LOINC code 9826-9
Last Updated 11/21/2013 12:49:43 PM
Entry Number 398
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