Samples that are screened at borderline/reactive will be sent to the state lab for supplemental testing.
To diagnose congenital syphilis in neonate/infants and to monitor treatment responses, quantitative RPR testing should be performed instead of the serologic syphilis screen. For congenital syphilis diagnosis, concurrent quantitative RPR testing of maternal serum should be obtained, to enable comparison between neonatal and maternal RPR titers.
Code | Name |
---|---|
SYPHT | T. pallidum IgG/IgM Ab (Bioplex) |
RPRSCB | RPR Screen |
SYPHSI | Syphilis Screening Status |
Multiplex immunoassay
Preferred: 6 mL blood in GOLD SST Tube
Also Acceptable: RED TOP
Plasma can only be used if a serum sample is not available and the use of plasma has been approved by the Lab Medicine Resident. Note: if screening results are not negative, a serum sample will need to be drawn for the mandatory State Lab supplemental testing, leading to reporting delays.
Unacceptable: Green, Lavender, Orange RST or Blue Top tube.
Stability: Refrigerated: 14 days (preferred); Frozen at -20°C or colder: Long Term (avoid repeated freeze-thaws)
Refrigerate serum
STAT requests need approval from Lab Medicine Resident on call
UW-MT |
Immunology
206-520-4600 Clinical Lab, Room NW220, |
---|