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Test Name

Porphyrins, Fractionated, Quantitative, Random Urine

To view specimen requirements and codes please Select a regional laboratory.

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CPT Code(s)**

84120
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.

Methodology

High Performance Liquid Chromatography (HPLC)

Reference Range(s)

Adult Reference Ranges:  
Uroporphyrin I: 3.6-21.1 mcg/g creatinine
Uroporphyrin III: ≤5.6 mcg/g creatinine
Heptacarboxyporphyrin: ≤3.4 mcg/g creatinine
Hexacarboxyporphyrin: ≤6.3 mcg/g creatinine
Pentacarboxyporphyrin: ≤4.1 mcg/g creatinine
Coproporphyrin I: 6.5-33.2 mcg/g creatinine
Coproporphyrin III: 4.8-88.6 mcg/g creatinine
Total Porphyrins: 27.0-153.6 mcg/g creatinine

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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Porphyrins, Fractionated, Quantitative, Random Urine
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