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HelpTest Code ASPVN Verify Aspirin
Useful For
Please be aware that this test is only available for ordering on the Marshfield Campus due to sample integrity. Patients should present at this facility if this test is needed.
Specimen Requirements
| Fasting Required | Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|---|
| No | Whole Blood | Greiner Blue Top Tube (BTT) | 3 Tubes, 2.0mL each | 3 Tubes, 2.0mL each |
Collection/Processing Instructions
Do not use a needle smaller than a 21 gauge for collection. Obtain appropriate volume of blood in first tube labeled DISCARD. Obtain same volume for the two sample specimens next and immediately gently invert tubes 5 times to mix anticoagulant with the blood. Do not refrigerate, freeze, or centrifuge sample specimen.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood | Ambient | 4 Hours |
Rejection Criteria
| Hemolyzed |
|---|
| Clotted |
| Low volume (<2.0mL/tube) |
| Refrigerated or frozen |
| Centrifuged |
Interpretations
Aspirin Reaction Units (ARU) of 550 or greater is evidence of ineffective inhibition of cyclooxygenase 1 (COX1) enzyme by aspirin. ARU of less than 550 is evidence of effective inhibition of COX 1 by aspirin.
Reference Range Information
| Performing Location | Reference Range |
|---|---|
| Marshfield | 620-672 ARU |
Marshfield Labs Performing Department
Marshfield Labs Hematology
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Marshfield | Monday through Sunday | Less than 2 hours | Verify Now |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 85576 |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Centricity | Verify Aspirin-SJH ONLY |
| Cerner | None |