DNA (DS), CRITHIDIA WITH REFLEX

Test Documentation
Specimen Required
Draw blood in a SST. Centrifuge, remove serum from cells and send 1.0 mL serum (0.2 mL minimum) refrigerated in a screw-capped plastic vial.

Methodology
Immunofluorescence Assay (IFA)

Stability
Room temperature: 7 days; Refrigerated: 16 days; Frozen: 35 days

Reference Range
Negative

Performed
Tuesday-Saturday

Turnaround Time3-5 days
Test CodeDNDSI
CPT-4 Code (s)
86255, plus 86256 if reflexed to titer, at an additional fee
LOINC Codes
DNA Ab, Crithidia   6457-6  
DNA Ab, Crithidia, titer   34187-5  

Warde
Medical
Laboratory