PORPHYRINS, QUANTITATIVE, URINE
Marquette General Health System

General Info

Alpha Code

   PORU

MGH LIS Test No

   688

Schedule

   Monday through Saturday

Testing Time

   Same day/2 hours

Testing Lab

   Mayo Labs

QORR Test Code

   PORU

Specimen Info

Type

      

Volume

    

Temperature

   Refrigerate

Preservative

    

Collection Info

   20-50 mL from a 24-hour urine collection.  Add 5 g of sodium carbonate 
as preservative at start of collection.  Protect specimen from light.
NOTE:  1. The patient should be off medications, if possible, for at
          least 1 week.
       2. 24-HOUR VOLUME IS REQUIRED ON REQUEST FORM FOR PROCESSING.      
 
Specimen Acceptability

Methods
High-Pressure Liquid Chromatography (HPLC) with Fluorometric Detection Includes coproporphyrins, uroporphyrins, and intermediate porphyrins (heptacarboxyl, hexacarboxyl, pentacarboxyl, and tricarboxyl [when detected]). Includes colorimetric determination of porphobilinogen.

Clinical Utilities

CPT Codes
84120

Reference Range
UROPORPHYRINS (octacarboxyl)
  Males:  3 - 25 ug/24 hours
  Females:  3 - 25 ug/24 hours
HEPTACARBOXYLPORPHYRINS
  Males:  0 - 7 ug/24 hours
  Females: 0 - 7 ug/24 hours
HEXACARBOXYLPORPHYRINS
  Males:  0 - 6 ug/24 hours
  Females:  0 - 6 ug/24 hours
PENTACARBOXYLPORPHYRINS
  Males:  0 - 7 ug/24 hours
  Females:  0 - 7 ug/24 hours
COPROPORPHYRINS (tetracarboxyl)
  Males:  25 - 150 ug/24 hours
  Females:  8 - 110 ug/24 hours
PORPHOBILINOGEN
  Males:  0.0 - 0.5 mg/24 hours
  Females: 0.0 - 0.5 mg/24 hours
See "Porphyrinogens, Porphyrins, and Porphyrias."      

Component Information

Collection Notes

Additional Comments

 

Questions or Comments email support@mgh.org

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