Test Overview
Method
Spectrophotometry
Result Included
Porphyrin Screen; Creatinine
Specimen
Specimen Type
Urine (Random)Volume
Sample Volume
20 mL
Collection & Handling
Collection Instructions
pH should be adjusted with sodium carbonate immediately following collection. Final pH should be 7 to 10.
Handling Information
Store and submit specimen protected from light.
Additional Information
Protect from light – collect in dark bottle or wrap with foil. Specimen aliquot must be labelled inside and outside light-protecting wrap. Indicate random collection and collection date. This collection is not suitable for ALA/PBG testing.
Rejection Criteria
| Criteria | Specification |
|---|---|
| Specimen | Not protected from light |
Performance & Interpretation
Turnaround Time
6 days
Results
Name
Units
Reference Range
Conversion
-
Porphyrin ScreenQualitative TestNormal
Comment
Quantitation will be performed and billed when the screen is positive.
-
Creatininemmol/LNot available for random urine.
Referral Location
Canada
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| PORPHSRU | Creatinine Random Urine | 20786 | mmol/L |
| Porphyrin Screen, Random Urine | 20250 |
Test Version
Last Updated
2021-06-26