Alert

 Ammonia (NH3)

 Must be delivered in lab on ice within 15 minutes of collection.

Tube Type

Test ID   LAB47
EPIC Order
  AMMONIA
CPT Code(s)   82140
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   Deliver directly to laboratory immediately after collection on ice
Specimen Routine: 3 mL blood/green top tube; see Comments for additional specimen information
  micro: 250  µL blood/pediatric green top tube
Stability
Unspun: 15 minutes
Room temperature: NO
Refrigerator: < 3 hours (plasma)
Frozen: < 24 hours (plasma)
Availability Routine: 24 hrs/day
  STAT: YES
Turnaround Time   1 hour
Reference Range Normal: 9-33 µmol/L
     

Internal Reference Testing Specimen Handling Instructions:

Plasma must be separated from cells within 15 minutes of collection.  Centrifuge, aliquot and freeze.

Comments
Must be delivered in lab on ice within 15 minutes of collection.
Specimens not received on ice will be rejected.
 
--Outreach samples are acceptable if centrifuged within 15 minutes, separated, and the plasma is transferred into a pre-chilled, labeled aliquot tube.--The sample must be kept on ice during transport to the laboratory. Contact lab for special handling instructions.
--Sample must be sent to the laboratory STAT.

Reviewed by ivette_marrero on August 22, 2016

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514

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