AMMONIA  Plasma

Message
Patient must come to Augusta Health Main Lab in Fishersville, VA for specimen collection.


Test Code
AMM


CPT Codes
82140

Preferred Specimen
Dark Green Top Sodium Heparin Tube - Place specimen on ice after collection and analyze as soon as possible. Plasma from Lavender EDTA is also acceptable.


Specimen Stability
Specimen must be collected on ice and analyzed as soon as possible.
 


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis and specimen received not on ice.


Clinical Significance
In vitro diagnostic test for the quantitative measurement of ammonia in human serum or plasma. Ammonia is used in the diagnosis and treatment of severe liver disorders such as cirrhosis, hepatitis, and  Reye's syndrome. The inheritied deficiencies of urea cycle enzymes are the major cause of hyperammonemia in infants. Elevated ammonia is toxic to the central nervous system.




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.