Uroporphyrin; Heptacarboxyporphyrin; Hexacarboxyporphyrin; Pentacarboxyporphyrin; Coproporphyrin; Protoporphyrin; Total Porphyrins; Interpretation
Back to Test Catalogue
Porphyrins Quantitation and Fractionation, Serum/Plasma
Test ID: PORPHQ P
Test
Method
HPLC
Report Includes
Specimens
Gel-separator tubes are not acceptable; Serum; Plasma (EDTA); Plasma (Na Heparin)
Test Location
Quest Diagnostics, California USA
Test Version
16-Jun-2021
Specimen
Specimens
Gel-separator tubes are not acceptable; Serum; Plasma (EDTA); Plasma (Na Heparin)
Collection Containers
Preferred
Plasma (Na Heparin) green top
Acceptable
Serum red top; Plasma (EDTA) lavender top
Sample Volume
2 mL
Minimum Volume
0.4 mL
Specimen Comment
Avoid gel separator tubes.
Collection & Handling
Collection Instructions
Collect in foil-covered tube to protect from light. Avoid hemolysis.
Handling Information
Store and submit specimen protected from light in an amber vial.
Freeze immediately after separation. Store and send frozen.
Stability
| Ambient | 8 hours |
|---|---|
| Refrigerated | 8 hours |
| Frozen | 90 days |
Rejection Criteria
| Hemolysis | Present |
|---|---|
| Specimen | Gel separator tube, not frozen or not protected from light |
Test Version
16-Jun-2021
Performance / Interpretation
Method
HPLC
Turnaround Time
11 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Uroporphyrin | µg/L |
|
||
| Heptacarboxyporphyrin | µg/L |
|
||
| Hexacarboxyporphyrin | µg/L |
|
||
| Pentacarboxyporphyrin | µg/L |
|
||
| Coproporphyrin | µg/L |
|
||
| Protoporphyrin | µg/L |
|
||
| Total Porphyrins | µg/L |
|
||
| Interpretation | ||||
Test Location
Quest Diagnostics, California USA
Test Version
16-Jun-2021
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| PORPHQ P | 39600UROPORPHYRIN | mcg/L |
| 39602HEPTACARBOXYPORPHYRIN | mcg/L | |
| 39604HEXACARBOXYPORPHYRIN | mcg/L | |
| 39606PENTACARBOXYPORPHYRIN | mcg/L | |
| 39608COPROPORPHYRIN | mcg/L | |
| 39610PROTOPORPHYRIN | mcg/L | |
| 39612TOTAL PORPHYRINS | mcg/L | |
| 39614INTERPRETATION |
Test Version
16-Jun-2021