Platelet Antibody, Direct
Test Summary
Thrombocytopenia that is refractory to platelet transfusions may be due to direct platelet antibody. Testing is useful to differentiate immune from non-immune disorders.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
Whole blood collected in an EDTA (lavender-top) tube - (see instructions)
Minimum Volume
See Instructions
Instructions
Do not refrigerate or freeze.
Please note: Effective 11/01/96, specimens submitted in ACD tubes (yellow-top) will no longer be accepted because of the high incidence of platelet clumping associated with this anticoagulant. If the platelet count is less than 20,000/ccm, submit 7-10 mL of whole blood.
Platelet Count Minimum Volume:
≥ 45,000 2 mL
20,000-45,000 5 mL
<20,000 10 mL
Pediatric minimum volume: The minimum volume is platelet count dependent. If possible, submit at least 1 mL EDTA blood
Please note: Effective 11/01/96, specimens submitted in ACD tubes (yellow-top) will no longer be accepted because of the high incidence of platelet clumping associated with this anticoagulant. If the platelet count is less than 20,000/ccm, submit 7-10 mL of whole blood.
Platelet Count Minimum Volume:
≥ 45,000 2 mL
20,000-45,000 5 mL
<20,000 10 mL
Pediatric minimum volume: The minimum volume is platelet count dependent. If possible, submit at least 1 mL EDTA blood
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 6 days
- Refrigerated: Unacceptable
- Frozen: Unacceptable
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis • Received frozen • ACD tubes
Order Code
PLAB
EPIC (Premier) Code
LAB3552
Includes
N/A
CPT Code
- 86023
Billing Code
- 670418
CPT Statement
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. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675
33608 Ortega Highway
San Juan Capistrano CA, 92675
Department
Reference Testing
Reference Range
| Anti-IgG | Negative |
Setup Schedule / Expected Turnaround Time
Daily; Report available: 4 - 5 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
Whole blood collected in an EDTA (lavender-top) tube - (see instructions)
Minimum Volume
See Instructions
Instructions
Do not refrigerate or freeze.
Please note: Effective 11/01/96, specimens submitted in ACD tubes (yellow-top) will no longer be accepted because of the high incidence of platelet clumping associated with this anticoagulant. If the platelet count is less than 20,000/ccm, submit 7-10 mL of whole blood.
Platelet Count Minimum Volume:
≥ 45,000 2 mL
20,000-45,000 5 mL
<20,000 10 mL
Pediatric minimum volume: The minimum volume is platelet count dependent. If possible, submit at least 1 mL EDTA blood
Please note: Effective 11/01/96, specimens submitted in ACD tubes (yellow-top) will no longer be accepted because of the high incidence of platelet clumping associated with this anticoagulant. If the platelet count is less than 20,000/ccm, submit 7-10 mL of whole blood.
Platelet Count Minimum Volume:
≥ 45,000 2 mL
20,000-45,000 5 mL
<20,000 10 mL
Pediatric minimum volume: The minimum volume is platelet count dependent. If possible, submit at least 1 mL EDTA blood
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 6 days
- Refrigerated: Unacceptable
- Frozen: Unacceptable
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis • Received frozen • ACD tubes
Result Information
Methodology
Flow Cytometry (FC)
Testing Laboratory
N/A
Reference Range
| Anti-IgG | Negative |
Setup Schedule / Expected Turnaround Time
Daily; Report available: 4 - 5 days