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HelpTest Code PLABNM Platelet Antibody Screen, Serum
Additional Codes
| Mayo | PLABN |
| Epic ID | LAB767 |
Special Instructions
Specimen Type
Serum RedOrdering Guidance
For testing neonates, send a maternal specimen, as unbound platelet antibodies may not be detected in the neonate's serum.
This test is not recommended for the diagnosis of immune thrombocytopenia or autoimmune thrombocytopenia. Tests that are optimized to detect antibodies bound to the platelets will be useful in these situations; cell-bound platelet antibody (direct) test is strongly recommended.
Necessary Information
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1.5 mL Serum
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Additional Information: For testing neonates, draw blood from the mother of the neonate. Then follow the Collection Instructions prior to sending.
STT/GEL tube in UNACCEPTABLE.
Specimen Minimum Volume
Serum: 0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum Red | Frozen (preferred) | 365 days |
| Refrigerated | 48 hours |
Transport frozen.
Reject Due To
| Gross hemolysis | Reject |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Method Name
Solid Phase Enzyme-Linked Immunosorbent Assay (ELISA)
Testing Algorithm
For more information see Platelet Antibody Testing Algorithm.
Useful For
Detecting alloantibodies to epitopes on platelet glycoproteins IIb/IIIa, Ib/Ix, Ia/IIa, IV and class I human leukocyte antigens to evaluate cases of immune mediated refractoriness to platelet transfusions, posttransfusion purpura, or neonatal alloimmune thrombocytopenia
Day(s) Performed
Monday through Friday
Report Available
2 to 4 daysReference Values
Not applicable
CPT Code Information
86022