ARUP's Laboratory Test Directory

Porphyrins, Total with Reflex to Fractionation and Quantitation, Plasma : 2006593

Mnemonic: PORPH TOT

Methodology: Qualitative Extraction/Scanning Spectrofluorometry/Quantitative High Performance Liquid Chromatography
Performed: Varies
Reported: 3-5 days
Specimen Required: Patient Prep: Patient should abstain from alcohol for 24 hours prior to collection

Collect: Green (sodium heparin). Also acceptable: lavender (EDTA)

Specimen Preparation: Protect from light. Transfer 3 mL plasma to an ARUP Amber Transport Tube and freeze immediately. (Min: 1 mL)

Storage/Transport Temperature: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered

Remarks: Include a current list of patient medications

Unacceptable Conditions: Separator tubes. Specimens not protected from light. Thawed specimens

Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 week


Reference Interval:
By Report
Note: If total porphyrins are greater than 1.0 then fractionation will be performed. Additional charges apply
CPT Code(s): 84311; if reflexed, add 82492
Cross References: Congenital Erythropoietic Porphyria (CEP), Coproporphyrin, EPP, Erythropoietic Protophyria (EPP), Protoporphyrin, Uroporphyrin