Ammonia (LABCORP)

Test Code

99901000146

Alias/See Also

LAB47: Ammonia NH3 | LABCORP EAP: 007054

CPT Codes
82140x1

Preferred Specimen

LABCORP LAB: LAV TOP-EDTA ON ICE (Frozen) Min Vol: .5

Transport Temperature

Specimen: Serum or plasma Volume: 1 mL Minimum Volume: 0.3 mL Container: Red-top tube or green-top (heparin) tube. Do not use a gel-barrier tube. The use of gel-barrier tubes is not recommended due to slow absorption of the drug by the gel. Depending on the specimen volume and storage time, the decrease in drug level due to absorption may be clinically significant. Collection: Transfer separated serum or plasma to a plastic transport tube. Both peak and trough concentrations should be monitored. The trough sample is drawn immediately prior to the next dose. Peak samples should be drawn 45 to 60 minutes after an IM injection, 30 minutes after the end of a 30-minute IV infusion, or immediately after a 60-minute IV infusion. Storage Instructions: Maintain specimen at room temperature.

Report Available

LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min

Last Updated: March 6, 2023

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.