Salicylate, Serum Synonyms Acetylsalicylic Acid, Blood; ASA, Blood; Aspirin, Blood; Salicylic Acid, Blood

Laboratory Core Laboratory

Request Form Routine Blood Requisition

Phone (212) 305-8600

Availability Daily, 24 hours

Turnaround Time 4 hours

Specimen Blood

Volume 4 mL

Minimum Volume 1 mL serum

Container Gold top tube or two gold top Microtainers^TM

Collection Optimal sampling time after dosage is 2-6 hours. Optimal resampling time after change in dosage is 6 hours.

Storage Instructions Refrigerate serum.

Reference Range Therapeutic: 2-29 mg/dL; toxic:

40 mg/dL

Critical Values

40 mg/dL

Use Monitor therapeutic drug level; evaluate toxicity

Methodology Fluorescence polarization immunoassay (FPIA)