PORPHYRINS, QUANTITATIVE, URINE
Marquette General Health System

General Info

HLAB/HOL 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

The CPT codes provided are based on AMA guidelines
and are for informational purposes only. CPT coding is the
sole responsibility of the billing party. Please direct any questions
regarding coding to the payer being billed.

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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