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HelpTest Code PHEN Phenobarbital
Specimen Type
Blood
Preferred Collection Container
GRN-PSTAcceptable Collection Container
GRN-PST, SST, R-NoGel, G-NoGel
Collection Instructions
Peak: 4-12 hours after dose; trough: Immediately prior to next dose
Collection Volume
5 mL
Minimum Collection Volume
0.6 mL in a Green microtainer
Testing Volume
0.2 mL (200 ul)
Rejection Criteria
Specimen not stored properly, severely lipemic, hemolyzed and icteric specimens.
Specimen Storage and Stability
Stable up to 7 days at 2-8 C
Day(s) and Time(s) Performed
Monday through Sunday, 24 hours
EPIC Code
LAB30
Turn Around Time
2 hours
Lab Department
Chemistry
Alias
Phenobarbital, Serum; Phenobarb; Luminal