AMON
Ammonia, Plasma
EPIC Test Procedure Code: LAB1982
Performing Lab:
Saint Luke's Regional Laboratories
Container Type:
Green top (heparin) tube
Specimen Type:
Plasma
Preferred Volume:
4 mL
Minimum Volume:
2 mL
Collection Procedure:
1. The specimen should be placed on ice immediately and centrifuged without delay.
2. If unable to run specimen within 30 minutes of centrifugation, separate plasma and place into a plastic vial.
3. Refrigerate if delivered to testing laboratory within 2 hours, freeze for longer transport up to 24 hours.
Store and Transport:
Refrigerate plasma if delivered within 2 hours, freeze if transport will take more than 2 hours. Frozen sample is good up to 24 hours.
Stability:
Frozen plasma - 24 hours
Plasma on ice - up to 2 hours
Green top on ice - 15 minutes
CPT Codes:
82140 - Ammonia (EAP 30044820)
Test Schedule:
Monday through Sunday
Method:
Enzymatic
Reference Ranges:
11.0 - 32.0
umol/L