Ammonia
Order Name
AMMONIA
Test Number: 2000300
Revision Date 06/17/2026
Test Number: 2000300
Revision Date 06/17/2026
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Ammonia
|
GLDH/UV | 16362-6 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Plasma | EDTA (Lavender Top) | Frozen |
| Alternate 1 | 1 mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | See Instructions |
| Instructions | Place specimen on ice immediately after drawing, Outpatient Collections Frozen EDTA plasma is preferred separate plasma and freeze within 30 minutes as Frozen P/O Frozen stability 24hrs. Ascension Hospital Collections Lithium Heparin Plasma is prefered, put on ice and deliver to lab immediately. Lithium Heparin Stability 2 hour delay permissible if plasma is separated from cells and kept on ice or refrigerated. |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Daily |
| Expected TAT | 1-2 days |
| Clinical Use | Useful in the diagnosis and treatment of advanced liver disease and hepatic encephalopathy and Reye's Syndrome. |
| CPT Code(s) | 82140 |
| Service Provided By |  |
| Lab Section | Chemistry |