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25007 Verify Aspirin

Verify Aspirin
Test Code: ASPVN
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​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Eau Claire Monday through Sunday​ Less than 2 hours​ Verify Now  ​
Marshfield​​ ​Monday through Sunday ​Less than 2 hours ​Verify Now
Reference Range Information
Performing Location Reference Range
Marshfield​ 620-672 ARU ​
Interpretation
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.​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
85576 ​ ​ ​ ​
Ordering Applications
Ordering Application Description
​Centricity ​Verify Aspirin-SJH ONLY
​Cerner ​None
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
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
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​
Reference Range Information
Performing Location Reference Range
Marshfield​ 620-672 ARU ​
Interpretation
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.​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Eau Claire Monday through Sunday​ Less than 2 hours​ Verify Now  ​
Marshfield​​ ​Monday through Sunday ​Less than 2 hours ​Verify Now
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
85576 ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.