Methodology
High Performance Liquid Chromatography (HPLC)
Specimen Type
Serum or Plasma
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
LAB01311
Lab Test Days
Tuesday and Thursday; P.M.
Standard TAT
5 Days
Collection Information
Specimen Required
1-4 mL Blood
Container Type
Green (Sodium Heparin)
Collection Instructions
Plasma collected in an EDTA (lavender-top) or serum collected in a (red-top) tube (no gel) is also acceptable. Protect specimen from light.
Processing Information - Lab Use Only
Transport Temperature
Frozen-Only
Specimen Stability
Room Temp: 8 Hours; Refrigerated: 8 Hours; Frozen: 90 Days
Rejection Criteria
Hemolysis; Received room temp; Received refrigerated; Not protected from light; Serum separator tube (SST)
Test Volume Required
2 mL Serum or Plasma
Minimum Test Volume
0.4 mL Serum or Plasma
Processing Instructions
Avoid hemolysis. Protect serum or plasma from light and freeze immediately.
Included Tests
Uroporphyrin, Heptacarboxyporphyrin, Hexacarboxyporphyrin, Pentacarboxyprophyrin, Coproporphyrin, Protoporphyrin, and Total Porphyrins
CPT Codes
82492
Revised
04-30-17
Initials
SL