Specimen Requirements
Title
Diphenhydramine (Benadryl)
Specimen Requirement
1 Red Top/1.0 mL serum (0.5 mL minimum). After 30 minutes of clotting, promptly centrifuge and refrigerate serum. Do not collect in serum separator tube.
Methodology
Stability
Room Temp 39 days; Refrigerated 30 days
Reference Range
By Report*
Turnaround
5-7 days
Clinical Use
Test Code
BENA