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Lab Test Dictionary

Soluble Fas-Ligand


Enzyme-Linked Immunosorbent Assay (ELISA)


sFasL; ALPS Biomarker (Soluble Fas-Ligand); sFas-Ligand; SFASL

Specimen Type

Whole Blood

Performing Lab

Cincinnati Children's Diagnostic Immunology

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

2 Weeks

Collection Information

Specimen Required

1-3 mL Whole Blood

Container Type

Lavender (EDTA)

Collection Instructions

Whole blood or serum collected in a (red-top) or serum separator tube (SST) is also acceptable. For whole blood collection, collect Monday-Thursday 0800-1300 only, no weekends or holidays.

Processing Information - Lab Use Only

Specimen Stability

Room Temp: 24 Hours; Refrigerated: Unacceptable; Frozen: Unacceptable (6 Months for Serum or Plasma)

Rejection Criteria

Whole blood or separated serum/plasma sent refrigerated or frozen

Test Volume Required

3 mL Whole Blood, Serum or Plasma

Minimum Test Volume

1 mL Whole Blood, Serum or Plasma

Processing Instructions

Complete a Cincinnati Diagnostic Immunology requisition and submit with whole blood room temp or serum/plasma frozen Monday-Thursday only, no weekends or holidays.

CPT Codes