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HelpTEST ID AMM AMMONIA
Performing Laboratory
NRLS-Core Chemistry
Specimen Type
Plasma
Specimen Required
**Place specimen on ice immediately following collection.**
Container/Tube:
Preferred: Lithium Heparin (Mint)
Acceptable: EDTA plasma, Sodium Heparin (Dark Green)
Specimen Volume: 1.0 mL
Collection Instructions:
Centrifuge as soon as possible and seperate plasma from cells.
Immediately place specimen on ice before and after centrifugation.
Proper specimen handling is critical; false increases in ammonia may occur if transport and processing instructions are not strictly followed.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature |
Time |
|---|---|---|
| Plasma | Refrigerated capped | 3 hours |
| Refrigerated uncapped | 30 minutes | |
| Ambient | not acceptable |
Specimen cannot be used if outside of recommended specimen storage temperature and stability. Greater than 30 minutes after collection for inpatients. Greater than 3 hours after collection for outpatient specimens. Once specimen is uncapped, the test must be run within 30 minutes.
Reference Values
An interpretive report will be provided
Day(s) Performed
Monday through Sunday
Report Available
Same day/1 day