Ammonia

Test Code
LAB47


CPT Codes
82140

Preferred Specimen
3 mL EDTA (lavender-top) tube of whole blood


Minimum Volume
0.5 ml plasma


Other Acceptable Specimens
1mL EDTA plasma


Instructions
If specimen cannot be tested immediately,centrifuge and separate plasma within 30 minutes of draw


Transport Container
leak-proof transport vial


Transport Temperature
Frozen


Specimen Stability
Room Temperature: Unacceptable
On Ice: 30 minutes
Refrigerated: Separated plasma 2 hours
Frozen: Separated plasma 72 hours




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.