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25007 Verify Aspirin

Verify Aspirin
Test Code: ASPVN
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​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
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.​
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​
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.

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
Marshfield​​ ​Monday through Sunday ​Less than 2 hours ​Verify Now
For billing questions, see Contacts
For most current information refer to the Marshfield Laboratory online reference manual.