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HelpTest Code AMM Ammonia
Alias
Ammonia
Collection Method
Venous Collection
Container
Lavender EDTA tube
Instructions/Special Handling
Place on ice immediately after collection. Testing must be performed within 60 minutes of collection.
If testing will be delayed, spin down the tube, pour off the plasma and freeze it.
Preferred Specimen
Lavender EDTA
Acceptable Specimes
- Whole Blood
- Lavender EDTA tube
Units
mcg/dL
Reference Ranges
| Age | Reference Range |
| 0 minutes - 3 days | 90 - 150 mcg/dL |
| 3 days - 2 weeks | 79 - 129 mcg/dL |
| 2 weeks - 18 years | 29 - 70 mcg/dL |
| >18 years - Male | 25 -94 mcg/dL |
| >18 years - Female | 19 - 82 mcg/dL |
Critical Values
N/A
Reasons for Rejection
| Hemolysis | Grossly hemolyzed |
| Icterus | N/A |
| Lipemia | N/A |
| Other | QNS, Contaminated, Improperly labeled, Improper specimen type |
Specimen Stability
| Ambient (15-25°C) | 30 minutes |
| Refrigerated (2-8°C) (spun down and separated) | 2 hours |
| Frozen (-20°C) (spun down and separated) | 3 days |
Performing Site
Boone Health Laboratory
Performance Information
| Days/Times Performed | Daily 24/7 |
| Expected Turn around Time | Same day |
| Methodology/Method Description | Roche Cobas - Enzymatic photometric |
CPT Code(s)
82140
Panel Components
N/A