Test Code SALI Salicylate (Aspirin) LAB34
Test Method
Timed Endpoint Technique; Beckman DXC600
Specimen Requirement
0.5 mL serum or plasma is required. Gel Tubes are
not
acceptable.
Additional Specimen Collection Information
Collect blood in a lithium heparin, green-top or red-top
tube.
Serum and plasma gel tubes are not acceptable. Serum or plasma
should be separated from contact with the cells within 2 hours
of
collection. Specimens not centrifuged within 4 hours of
collection
may be rejected. Refrigerate the specimen if unable to assay
within
8 hours of collection. Samples with >2+ lipemia must be
cleared
prior to analysis.
Reference Values
Therapeutic: 15-30 mg/dL
- Critical Value: > 40 mg/dL
Performance
Monday through Sunday
Routine: Typically completed within 4 hours after arrival at
the
testing site.
Expedite: Typically completed within 1 hours after
specimen
arrives at the testing site.
STAT: Typically completed within 30 minutes after specimen
arrives at the testing site.
Useful For
Assessing toxicity
This test is NOT useful for assessing low-dose aspirin
therapy
LOINC Code Information
4024-6 Salicylates [Mass/Volume] In Serum Or Plasma
CPT Code Information
Insurances following Medicare rules: G0480
80329 Analgesics, non-opioid; 1 or 2
Limitations
- Patients treated with Sulfasalazime may generate a false
high
result for salicylate. - Patients treated with Sulfapyridine may generate a false
low
result for salicylate. - Patients treated with temozolomide may generate a false low
result for salicylate.