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Porphyrins (24 hour urine)
Lab code: UPORF
Test Synonyms:
Porphyrins (24 hour urine)
  NOTE: This test is performed at an external reference lab.
Chemistry (Sendouts)
Inpatient Req:
Core Lab (#84927)  
Outpatient Req:
Clinical Labs (#83608)  
Timed Urine
Urine should be collected in a container with 5 g sodium carbonate added as a preservative at the start of collection. This preservative is intended to achieve a pH of >7.
Result Time:
2-5 days   Cost: $$
Reference Interval:
Important Information:
A timed (24 hour) urine is the preferred test during symptomatic periods for acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria. Testing includes porphobilinogen.