Methodology
Liquid Chromatography Mass Spectrometry
Specimen Type
Urine, Timed Collection
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB01193
Lab Test Days
Tue Thu
Standard TAT
9
Collection Information
Container Type
24-Hour Urine Container
Processing Information - Lab Use Only
Transport Temperature
Ship frozen (Do not thaw)
Specimen Stability
Room Temp: Unacceptable , Refrig: Unacceptable , F
Rejection Criteria
Thawed 24-hour urine, pH <2.0, IVP within 48 hours
Test Volume Required
1.8 mL
Minimum Test Volume
0.4 mL
Processing Instructions
Do not use preservatives. Urine with a pH less than 2.0 will be rejected. Keep collection container refrigerated during 24-hour collection. Start collection after first morning void. Collect through first morning void of the next day. Take collection to the laboratory ASAP on the second day. The laboratory will mix sample well, measure total volume and remove an aliquot to send for testing. Freeze aliquot immediately.
CPT Codes
82131