Methodology
ELISA
Synonyms
Idiopathic Thrombocytopenia Purpura (ITP); Indirect and Direct Platelet Antibodies; Platelet Associated IgG and IgM
Specimen Type
Whole Blood
Performing Lab
Versiti Wisconsin P/N Immunology
Epic ID
Other Reference Test
Lab Test Days
Varies
Standard TAT
3 Days
Collection Information
Specimen Required
40 mL Whole Blood (if platelet count <100,000) or 10 mL Whole Blood (if platelet count is >100,000)
Container Type
Yellow (ACD)
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-Only
Specimen Stability
Room Temp: Unacceptable; Refrigerated: 4 Days; Frozen: Unacceptable
Test Volume Required
40 mL Whole Blood (if platelet count <100,000)
Minimum Test Volume
10 mL Whole Blood (if platelet count is >100,000)
Processing Instructions
Complete a Versiti Wisconsin Platelet and Neutrophil Immunology requisition and submit with specimen refrigerated Monday-Friday, ok for Saturday delivery.
CPT Codes
86022, 86023
Revised
11/17/25
Initials
SA