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PORPH / 003103L
PORPHOBILINOGEN (PBG), QUANTITATIVE, 24-HOUR URINE

Test Code PORPH / 003103L 
Test PORPHOBILINOGEN (PBG), QUANTITATIVE, 24-HOUR URINE 
Methodology Ion-Exchange Chromatography / Spectrometry 
Description Useful as an initial test for acute intermittent porphyria 
Specimen 10 mL (minimum volume: 1.0 mL) of light-protected urine from a 24-hour urine collection. Add 30 mL of 30% glacial acetic acid at the start of collection to an amber collection container. For multiple collections, see "Urine Preservatives". Mix well, measure and record 24-hour volume, and send aliquot FROZEN and LIGHT PROTECTED. For additional collection instructions, see "Urine Collection".

NOTE: Specimen must be kept refrigerated during collection. 

Reference Values 0.0 - 1.5 mg/24 hours

See "Porphyrinogens, Porphyrins, and Porphyrias". 

Analytic Time 2 Days 
Day(s) Test Set Up Monday, Wednesday, Friday 
CPT Code(s) 84110  

Special Instructions