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Test Code LAB31 Phenytoin

Specimen Requirement

1.0 mL serum or lithium heparin plasma; SSTand PST acceptable.

 

Avoid prolonged contact with red blood cells.

Specimen Stability

2 days at 20-25° C

1 month at 2-8° C

5 months at -20° C

Testing Schedule

Daily

Reference Range

10 - 20 ug/mL

Testing Department

Chemistry

Method

Enzyme Immunoassay

CPT Code

80185

Additional Testing Locations

This test is also performed daily at the following Altru Clinic:

  • Devils Lake

Please contact appropriate lab location for specific test information, as methodology varies by site.