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Platelet Antibody, Direct, Flow Cytometry (PLABD)
Test CodeLAB1177
Quest Code
5019
Alias/See Also
PLABD
CPT Codes
86023
Preferred Specimen
7 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
5 mL
Instructions
Do not refrigerate or freeze. If the platelet count is less than 20,000/ccm, submit 7-10 mL of whole blood.
Transport Container
EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 6 days
Refrigerated: Unacceptable
Frozen: Unacceptable
Refrigerated: Unacceptable
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received refrigerated or frozen; gross hemolysis
Methodology
Flow Cytometry (FC)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
PM Monday-sunday
Report Available
3 days
Reference Range
Anti-IgG Negative
Clinical Significance
Thrombocytopenia that is refractory to platelet transfusions may be due to direct platelet antibody. Testing is useful to differentiate immune from nonimmune disorders.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |