Methodology
Immunoassay (IA)
Specimen Type
Urine, Timed Collection
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB4210
Lab Test Days
Tuesday and Friday
Standard TAT
1-5 Days
Collection Information
Specimen Required
2-4 mL 24 Hour Urine (no preservative)
Container Type
24-Hour Urine Container
Collection Instructions
Avoid direct sunlight. Patient should refrain from taking allergy causing drugs, antihistamines, oral corticosteroids, and substances which block H2 receptors for at least 24 hours prior to specimen collection.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK
Specimen Stability
Room Temp: 48 Hours; Refrigerated: 14 Days; Frozen: 14 Days
Test Volume Required
4 mL 24 Hour Urine (no preservative)
Minimum Test Volume
2 mL 24 Hour Urine (no preservative)
Processing Instructions
Indicate total volume in comments, on specimen and on batch sheet.
CPT Codes
83088
Revised
11/4/25
Initials
SA