Sign in →

Test Code 590 Salicylate (Aspirin)

Additional Codes


PowerChart: Salicylate Level

MA Cerner: Salicylate Level

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.

Useful For

Assessing toxicity

This test is NOT useful for assessing low-dose aspirin therapy


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.

CPT Code Information

Insurances following Medicare rules: G0480

80329 Analgesics, non-opioid; 1 or 2

LOINC Code Information

4024-6 Salicylates [Mass/Volume] In Serum Or Plasma

Test Method

Timed Endpoint Technique; Beckman DXC880i

Reference Values

Therapeutic: 15-30 mg/dL

  • Critical Value: > 40 mg/dL


  1. Patients treated with Sulfasalazime may generate a false high result for salicylate.
  2. Patients treated with Sulfapyridine may generate a false low result for salicylate.
  3. Patients treated with temozolomide may generate a false low result for salicylate.