A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Porphyrins, Fractionated, Quantitative, Random Urine
Message*Protect from light.
Test Code
36592
Alias/See Also
LAB433
CPT Codes
84120
Includes
Coproporphyrin I, Coproporphyrin III, Heptacarboxyporphyrin, Hexacarboxyporphyrin, Pentacarboxyporphyrin, Uroporphyrin I, Uroporphyrin III, Total Porphyrins
Preferred Specimen
2 mL random urine in 5 g sodium carbonate container or no preservative container - protected from light
Minimum Volume
1.5 mL
Other Acceptable Specimens
Random clean catch urine • Catheterized urine • First void clean catch • Random urine collected with sodium bicarbonate • Random urine collected with no preservatives
(ok to add preservative after collection)
(ok to add preservative after collection)
Instructions
Random 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.
Collection with no preservative is acceptable, if properly refrigerated and light protected.
Transport Container
Sodium carbonate container
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature • Samples not protected from light • Samples with a pH <4.0
Methodology
High Performance Liquid Chromatography (HPLC)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Sun, tues-fri
Report Available
5-7 days
Reference Range
Uroporphyrin I | 3.6-21.1 mcg/g creat |
Uroporphyrin III | ≤5.6 mcg/g creat |
Heptacarboxyporphyrin | ≤3.4 mcg/g creat |
Hexacarboxyporphyrin | ≤6.3 mcg/g creat |
Pentacarboxyporphyrin | ≤4.1 mcg/g creat |
Coproporphyrin I | 6.5-33.2 mcg/g creat |
Coproporphyrin III | 4.8-88.6 mcg/g creat |
Total Porphyrins | 27.0-153.6 mcg/g creat |
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |