Doctor's Data Inc

Hexacarboxyporphyrin; urine

CPT Code

84120

Specimen Requirements

10 mL - from 1st morning void or 24-hour urine collection

Collection Container/Tube

Collect urine in supplied plastic specimen collection cup. 24-hour urine collections are poured into larger amber container.

Transport Container/Tube

15 mL amber plastic specimen vial containing preservative (25mg Sodium Carbonate)

Minimum Specimen Volume

3 mL

Rejection Criteria

Sample not protected from light
Sample acidified - pH <5.0

Stability Information

Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
37°C/99°F: Not determined

Methodology

HPLC

Turnaround Time

3 - 5 days

Reference Intervals

Sex Age
Both 0-10 years <3.5 nmol/24H
Both 11-17 years <3.5 nmol/24H
Female 17-99 years <3.5 nmol/24H
Male 17-99 years <3.5 nmol/24H
Both 0-10 years <5.2 nmol/g creatinine
Both 11-17 years <4 nmol/g creatinine
Female 17-99 years <3.5 nmol/g creatinine
Male 17-99 years <3 nmol/g creatinine