AMMONIA

Synonyms:
Computer Code: (NH4)
Specimen Collection: 2 mL blood (Preferred-Lavender (EDTA) or Green (Lithium Hepain, Sodium Heparin). NO MICROTAINERS.
Minimum Volume: 1 mL
Handling Instructions for Offsite Areas: Centrifuge immediately. TRANSPORT IMMEDIATELY ON ICE. FROZEN SAMPLES NOT ACCEPTABLE.Sample must be received in lab within 45 minutes. EDTA samples stable 3 hours. Heparin samples stable only 1 hour.
Reference Values: 0-32 UMOL/L Critical Value: > or equal to 250 umol/L
Lab Code: Chemistry
Requisition: SPEC C
Test Frequency: Daily
Routine TAT: 2 hrs
Stat TAT: 60 min
CPT Code(s): 82140
LCD or NCD:
Methodology Used:
See Addendum XVII