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Test Code LAB8092 Syphilis Total IgG and IgM with Reflex to RPR

Important Note

This is the preferred assay for the initial screening test for syphilis. If Syphilis Total IgG and IgM is positive or equivocal, an RPR will be performed at an additional charge. If the RPR is negative, a Treponemal pallidum agglutination may be performed at an additional charge.

To diagnose or monitor the treatment of congenital syphilis in infants up to 6 months of age, order LAB494 RPR (Rapid Plasma Reagin).

Additional Codes:

SYPH T

Collection:

Specimen: Blood

Container: Serum Separator or Plain Red Top

Volume: 5 ml; Minimum 3 ml

Pediatric Collection:

Two Gold or Red microtainer filled to 600 uL.

Storage Instructions:

Serum may be stored for up to 7 days at 2-8C. For longer storage, serum must be frozen at -20 or colder.

Turnaround Time (TAT):

Results are reported same day as performed or next day if reflex testing is indicated.

Test Availability:

Monday – Friday

Assay:

0.2 ml serum

Request Form:

Routine Laboratory Request Form

Send To:

UMC MAIN LABORATORY- EH319 Extension Hospital

Reference Interval:

Non-reactive

Interpretive Data:

Range Interpretation  
< 0.8 AI Nonreactive A nonreactive result does not exclude the possibility of exposure to or infection with T. pallidum.  Antibodies may be at low or undectable levels in incubating or early primary disease and in some clinical conditions. 
0.9 - 1.0 AI Equivocal Nontreponemal and/or treponemal testing will be ordered to establish the presence or absence of disease.

> 1.1 AI

 Reactive Nontreponemal and/or treponemal testing will be ordered to establish the presence or absence of disease.

AI = Antibody Index