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Test Compendium

6150: ETHOSUXIMIDE (ZARONTIN), SERUM

Test Code

  • 6150

Test Synonym

  • Ethosuximide

Minimum Volume

  • 0.6 mL

Specimen Requirements

  • Serum Or Plasma

Container

  • Plain Red Top Tube, Lavender Top Tube, Green Top Tube, Transfer Tube- Serum, Transfer Tube- Plasma

Storage

  • Refrigerated

Turn Around Time

  • 5 days

CPT Codes

  • 80168
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • Red-top tube, lavender top (EDTA ) tube OR green-top (heparin) tube. DO NOT USE A GEL-BARRIER TUBE. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant. State other drugs taken by patient.

Additional Information

  • Transfer separated serum or plasma to a plastic transport tube. Oral: peak: two to four hours after dose; trough: immediately prior to next dose. Peak or trough levels may be used to monitor therapy because blood levels are fairly constant.

Specimen Stability

  • AMBIENT: 14 days REFRIGERATED: 14 days FROZEN: 14 days