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HelpTest Code LAB12443 Protein S Antigen
Department
SEND OUTS
Reference Lab Test Number
PSAG
Collection Requirements
Draw blood in a light blue 3.2 % sodium citrate tube. See appendices for coagulation test collection instructions
Refer To
Primary Collection Container
Blue 2.7 mL (Citrate)
Transport
Plasma frozen
Preferred Transport Temperature
Frozen
Processing
CRITICAL FROZEN.
Send 1.0 mL plasma in a screw-capped plastic vial. Separate samples should be submitted when multiple tests are ordered.
Stability
Ambient: 4 hours
Refrigerated: Unacceptable
Frozen: 1 month
Minimum Testing Volume
0.5 mL
Reference Range
50-140%
Methodology
Latex Immunoassay
Performed
Monday – Friday
Reported
4 Days
CPT Codes
85305
Unacceptable Conditions
Hemolyzed samples, thawed samples
Additional Information
Testing cannot be performed on a sample that has been thawed and refrozen.