| Test Name: |
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Drug-Dependent Platelet Ab
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| Test Code(s): |
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DDPLT / HCDDPLT
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| CPT Code(s): |
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86022 (1-3 drugs); each additional drug add 86022
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| Methodology: |
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Flow Cytometry
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| Testing Site: |
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Testing will be sent to an approved reference laboratory.
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| Days Performed: |
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Twice a week-days vary.
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| Turnaround Time: |
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Routine: 5 - 7 days.
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Specimen Requirements
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| Specimen: |
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Blood
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| Collection Instructions: |
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Provide list of drugs to be tested.
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| Collection Container: |
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Preferred: Red top
Also Acceptable:
Light blue top (3.2% NaCitrate)
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| Collection Volume: |
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Preferred: 9 mL
Pediatrics: 2 mL
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| Sample Analyzed: |
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Serum or plasma
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| Volume Required: |
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Preferred: 5 mL
Pediatrics: 1 mL
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.
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| Stability: |
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Ambient: Not acceptable
Refrigerated: 7 days
Frozen: 30 days
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Interpretation
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Expected Results:
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No drug-dependent platelet antibodies detected.
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| Additional Information: |
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Positive test results are not absolutely diagnostic of drug-induced thrombocytopenia and must be used in combination with clinical information to make a diagnosis. Negative results do not completely rule out a diagnosis of drug-induced immune thrombocytopenia.
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