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Porphyrins Screen, 24 hr Urine

Test ID: PORPHS U
Test
Specimen
Performance / Interpretation
Interface / Setup

Test

Method

Spectrophotometry

Report Includes

Creatinine; Porphyrin Screen

Specimens

Urine (24 hr)

Clinical Utility

Quantitation will be performed and billed (see separate listing) when the screen is positive.

Test Version

26-Jun-2021

Specimen

Specimens

Urine (24 hr)

Sample Volume

20 mL

Collection & Handling

Collection Instructions

Collect 24 hour urine with 5 g sodium carbonate. Final pH should be 7 to 10. Keep cool during collection and protect from light.

Handling Information

Store and submit specimen protected from light.

Additional Information

Specimen aliquot must be labelled inside and outside light-protecting wrap. Provided volume (in litres) and collection date. This collection is not suitable forALA/PBG testing.

Rejection Criteria

Specimen Not protected from light

Test Version

26-Jun-2021

Performance / Interpretation

Method

Spectrophotometry

Turnaround Time

6 days

Results

Name Units Reference Range Conversion Factor
Creatinine mmol/d
  • Male, ≥18 y: 7.1 - 17.7
  • Female, ≥18 y: 5.3 - 15.9
  • Creatinine reference values are not available for individuals ≤17 y
Porphyrin Screen Qualitative Test
  • Normal

Test Version

26-Jun-2021

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
PORPHS U 20251Creatinine 24h Urine Porphyrin Screen mmol/d
20252Porphyrin Screen - 24h Urine

Test Version

26-Jun-2021