Epic Code LAB3325 VerifyNow® Assay for Aspirin Effect
Test Name Alias
Verify Now Aspirin | 151
Interface Order Alias
11640
Quick Collect
LOOK+LOOK
Clinical Information
The Verify Now Aspirin Test qualitative test aids in the detection of platelet dysfunction due to aspirin ingestion. This test is not for use in patient with underlying congenital platelet abnormalities, patients with non-aspirin induced acquired platelet abnormalities or in patients receiving non-aspirin anti-platelet agents. (May be used in patients treated with COX-2 inhibitors, e.g., celecoxib (Celebrex).
Ordering Instructions
NSAID's will interfere with this assay. Direct IIb/IIIa inhibitors will interfere and testing must not be performed within 48 hours after administration of eptifibatide (integrilin) or tirofibrin (Aggrastat), or within 14 days after administration of abciximab (ReoPro)
Collection Instructions
Direct Venipuncture |
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Specimen Type: Whole blood
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Indwelling Catheter |
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Specimen Type: Whole blood
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Processing Instructions (Laboratory, Outpatient or Off-site collection)
This test has not been validated for transport and cannot be couriered from offsite locations.
Rejection Criteria
Hemolysis
Specimen Stability
Ambient: 4 hours
Refrigerate: not acceptable
Frozen: not acceptable
Laboratory Retention: 24 hours
Test Frequency
Available 24 hours, usual TAT 1 day.
Reference Range
Interpretive Comment
Verify Now Aspirin assay results are reported in Aspirin Reactivity Units (ARU)
ARU values below 550 are indicative of effective aspirin inhibition of platelet activity.
ARU values of 550 or above are indicative of ineffective aspirin inhibition of platelet activity.
Performing Department
Coagulation
Performing Department Laboratory Location
Corewell Health Reference Laboratory, Grand Rapids, MI
Methodology
Point of care, utilizing platelet induced aggregation turbimetric optical detection.
CPT
85576
CDM Code
3058557603
Epic Test ID
1230101280
LOINC
Verify Now Aspirin: 49011-0
Reviewed Date
3/23/2023
Updated Date
1/13/2025 - Important Note BW removed