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Porphyrins, Fractionated, Quantitative, 24-Hour Urine QPPF24

Method(s) High Performance Liquid Chromatography (HPLC)
Synonym Heptacarboxyporphyrin, Tetracarboxyporphyrin
Specimen Required
Collect

24-hour urine.

Also acceptable: No preservatives - See Collection Instructions
Transport

2 mL urine from a 24-hour urine collected in a 5 g sodium carbonate container or no preservative container. PROTECTED FROM LIGHT.

* Collection Instructions *

  • 24-hour urine collected with 5 grams of sodium carbonate.
  • Refrigerated and protected from light during collection is preferred.
  • Collection with no preservative is acceptable, if properly refrigerated and light protected.
  • 24-hour total volume must be provided on the test requisition.
Stability

Ambient: Unacceptable

Refrigerated: 7 days

Frozen: 30 days
Unacceptable Conditions
  • Received room temperature
  • Not protected from light
  • pH less than 4.0
Schedule Tue-Sat; Report available: 3-8 days
CPTCode 84120
Notes Performing Laboratory-Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
Preferred Specimen Collection Device(s)
Reference Interval
 
Uroporphyrin I4.1-22.4 mcg/24 h
Uroporphyrin III0.7-7.4 mcg/24 h
HeptacarboxyporphyrinLess than or equal to 3.3 mcg/24 h
HexacarboxyporphyrinLess than or equal to 10 mcg/24 h
PentacarboxyporphyrinLess than or equal to 4.6 mcg/24 h
Coproporphyrin I7.1-48.7 mcg/24 h
Coproporphyrin III11.0-148.5 mcg/24 h
Total Porphyrins35.0-210.7 mcg/24 h
No Appointment Necessary
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