Trihexyphenidyl, Blood Test (4680B)

Trihexyphenidyl, Blood Test (4680B)

Analysis Code 4680B 
Test Name Trihexyphenidyl, Blood 
Test Includes Trihexyphenidyl 
Purpose Therapeutic Drug Monitoring; This test is New York State approved. 
Category Antiparkinson 
Method(s) Gas Chromatography (GC) 
Specimen Requirements 5 mL Blood 
Transport Temperature Refrigerated 
Specimen Container Gray top tube (Sodium Fluoride / Potassium Oxalate) 
Special Handling None 
Light Protection Required Not Required 
Stability Room Temperature: 7 day(s)
Refrigerated: 14 day(s)
Frozen (-20 °C): 12 month(s) 
*Rejection Criteria None 
Day(s) Test Set-up / TAT [GC] Tuesday Friday / 3 days 
Suggested CPT Code 80375 
**Minimum Volume 2.2 mL 
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You are viewing Trihexyphenidyl, Blood Test (4680B)
*Rejection criteria pertain to clinical specimen submissions only.
**Stated minimum volume allows for a single analysis. Repeat analysis will not be performed.


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