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|
| Test Code |
Procedure |
| 300353 |
AspirinWorks® |
|
| CPT Code |
| 84431, 82570 |
| Specimen Requirement |
| 9mL urine. Add Chlorstat tablet within 4 hours. Freeze sample within 24 hours; Ship frozen on dry ice for overnight delivery. |
| Pediatric Minimum |
| 6 mL urine. |
| Methodology |
Performing Location |
| ELISA |
Colorado Coagulation |
| Assay Schedule |
Result Turnaround Time |
| Sat |
4 - 8 days |
| Reference Range |
| >1500 pg 11dhTxB2/mg creatinine
|
| Clinical Utility |
| Urinary TXB2 is of interest in monitoring the anticoagulant response of aspirin therapy. In those patients responsive to aspirin therapy and taking adequate doses, urinary 11-dehydro TXB2 levels should be reduced below a predetermined cut-off when compared to control values.
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PLEASE NOTE: CPT codes are to provide guidance. These codes are subject to change on a regular basis and it is the client’s responsibility to verify accuracy of the codes listed. You should refer to the most current version of the CPT coding manual published by the American Medical Association to resolve any issues.
*** Indicates assay performed by third party reference laboratory.
Assay Schedule: The specific day a specimen must be received in order to make the soonest available run. Please note the assay schedules are provided as general approximations for estimating turnaround times, but are subject to change without notice.
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