Laboratory Test Detail

Last Updated: March 22, 2019 @ 9:13 am

91342

Porphyrins, Urine Fractionated

Specimen:Collect:
  • Timed Urine in Timed Urine Container

Also Acceptable:
  • Random Urine in NONE
Submit:
  • 4 mL (Min:2 mL) Aliquot(s) Timed Urine . Submit Frozen.

Also Acceptable:
  • 4 mL (Min:2 mL) Random Urine . Submit Frozen.
Special Handling:
  • 24 HR Urine Collection Preferred
  • Keep Specimen Refrigerated During Collection
  • Protect from Light
  • State Collection Time
  • State Volume
  • Transport in amber transport tubes
  • Evaluation of neurologic and/or psychiatric symptoms associated with acute porphyrias such as acute intermittent porphyria (AIP) requires urine porphobilinogen (PBG) testing. (IP Test #91182)
Rejection Criteria:
  • Specimen not protected from light
Stability:Ambient: Unacceptable; Refrigerated: 4 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology:
  • High performance liquid chromatography (HPLC)
Performed:Sunday, Mon-Fri
Reported:2-5 Day(s)
CPT Codes:
  • 84120
Interpretive Data:Please see report for interpretive data.
Components:
  • 93454 - UROPORPHYRIN
  • 93455 - HEPTACARBOXYLATE
  • 93624 - COPROPOR I
  • 93626 - COPROPOR III
  • 93008 - CREAT, UR
  • 93009 - CREATININE
  • 93518 - HOURS COLLECTED
  • 93388 - URINE VOLUME
  • 93457 - INTERPRETATION
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