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St. John Health System
Lab Catalog


Index:

Alpha Subunit (Free)

Order Name FREE ASU
Test Number: 5194324
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Alpha Subunit (Free)
Immunochemiluminometric (ICMA) 30316-4 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.25 mL) Serum Clot Activator SST Frozen
Instructions Notes: 0.25 mL (Note: This volume Does NOT allow for repeat testing.)
Specimen Type: Serum from gel-barrier tube, Serum from red top tube, OR Serum from transfer tube
Specimen Storage: FREEZE
Specimen Collection: Transfer the serum into a LabCorp PP transpak frozen purple tube with screw cap (LabCorp ID 49482). FREEZE immediately and maintained frozen until tested. To avoid delays in turnaround time when requesting multiple test on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED.
Special Instructions: Testing is performed at Esoterix Endocrinology Laboratory: ES#500016
Specimen Stability: Ambient: 1 day, Refrigerated : 1 day, Frozen: 200 days
GENERAL INFORMATION
Expected TAT 6 - 10 days  
Notes Labcorp Test Code: 140269
CPT Code(s) 83520
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab