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Test Code LAB47 Ammonia, Plasma

Reporting Title

Ammonia

Methodology

Roche Diagnostics: RMH, BH, DH, DHC, DMH, GCMH, GMC, GMH, MGH, MH, OBH, PMH, WECC, HMH, SH

Ammonia is elevated in severe liver diseases such as cirrhosis, hepatitis, and Reye’s syndrome.

Performing Laboratory

OhioHealth Laboratory Services - RMH, BH, DH, DHC, DMH, GCMH, GMC, GMH, HMH, MGH, MH, OBH, PMH, SH, WECC Core Laboratories

Specimen Requirements

INPATIENT: Draw blood in a lavender-top (EDTA) tube(s) and send to the lab within 30 minutes on ice. 

OUTPATIENT: Draw blood in a lavender-top (EDTA) tube (s) and place on ice. Centrifuge within 30 minutes of draw and send 1 mL of EDTA plasma frozen in plastic vial.  Avoid hemolysis.

Sample Stability Information:

Separated plasma 3 hours refrigerated in a stoppered container at RMH, GMC, DH, DMH, GCMH, WECC, and DMH

Freeze specimen for longer storage or shipment

Specimen Transport Temperature

Frozen: OK

Refrigerate: NO

Ambient: NO

Reference Values

0-10 days:  100-200 Micromol/L

11 days-2 years:  40-80 Micromol/L

≥3 years:  12-47 Micromol/L

 

 

 

Day(s) Test Set Up

Monday through Sunday- Continuously

 

Test Classification and CPT Coding

82140