Ammonia

Overview

  • EPIC Code:
  • LAB47
  • Soft Test Code:
  • NH3
Alternate Names
  • NH3

Specimen Collection & Preparation

Specimen Requirements:

-OR-

3.0 mL Plasma from a Lavender Top Tube - EDTA
Minimum Volume:
0.5 mL Plasma*

* This volume does not allow for repeat testing

Collection Instructions:

Pre-Chill tube before collection (this step is preferred, but not required)

Place specimen in ice bath immediately after collection

Due to smearing of print while on ice, please ice in the side pocket of the transport bag with, the specimen, second label, and requisition in the main pocket transport bag. 

Keep on ice during transportation and delivery to testing department


Processing Instructions:

Centrifuge and separate from cells within 20 minutes of collection

Freeze immediately after centrifugation

 


Rejection Criteria:

Specimen not kept directly on ice

Specimen delivered to lab in incorrect pocket of transport bag. 

Thawed Specimen

Capillary Specimen

Collected in microtainer tube 

Serum Separator Tube (SST or PST)


Transport and Storage:
  • Iced: 20 Minutes

    Whole blood is only stable 20 minutes iced

  • Ambient (18-24°C): 30 Minutes

    Plasma

  • Refrigerated (2-8°C): 2 Hours

    Plasma

  • Frozen (-20° C or colder): 3 Days

    Plasma

  • Ultra Frozen (-70° C or colder or by dry ice): At least 4 Weeks

    Plasma

Clinical Interpretation

Reference Range:

11 - 32 umol/L


Methodology:
  • Enzymatic

Production Schedule

Sites Performed
  • Parkview DeKalb Hospital
  • Parkview Huntington Hospital
  • Parkview Kosciusko Hospital
  • Parkview LaGrange Hospital
  • Parkview Noble Hospital
  • Parkview Randallia Hospital
  • Parkview Regional Medical Center
  • Parkview Southwest
  • Parkview Wabash Hospital
  • Parkview Whitley Hospital
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Chemistry
Turn Around Time

Same day/next day


Stat Eligible

Coding & Compliance

CDM

01423644


CPT Coding

82140