Porphobilinogen, Quantitative, Random Urine

Test Code

CPT Codes

Preferred Specimen
10 mL random urine submitted in a plastic, leak-proof container

Minimum Volume
2 mL

Do not use preservatives.
Optimal pH is 6-7. Wrap sample in aluminum foil to protect from light. Ship frozen or refrigerated (cold packs).

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: Unacceptable
Refrigerated (pH 6-7): 7 days
Frozen (pH 6-7): 30 days

Colorimetric (C)

Setup Schedule
Set up: Mon-Fri p.m.; Report available: Same day

Reference Range
See Laboratory Report

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.