Yale New Haven Hospital

Department of Laboratory Medicine
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Ammonia

Lab Section: 

Chemistry

 

Lab Location: 

Main Lab

Test ID: 

LAB47

 

Synonyms: 

NH3

Methodology: 

Enzymatic

Schedule: 

On request

Reported: 

60 minutes

Specimen Requirements: 

Collection: 3.0 mL Primary - Lavender top EDTA plasma only.
Pediatric volume: 0.2 mL (Plasma)
Collection time required.
Transport: Deliver to lab on ice immediately..
Unacceptable conditions: In-house samples not arriving within 60 minutes on ice unacceptable. Hemolyzed samples unacceptable.

 

Aliquot Stability:

8 hours at 4 C (refrigerated, on ice)

36 hours at 14 C (frozen or on dry ice)

21 days at 70 C (frozen in 70 freezer)

 

Reference Interval: 

Age Limit

Sex

Normal Range

Units

0 - 999 Years

Any

11-35

umol/L

 

CPT Code(s): 

82140

Last Changed: 

6/22/2018 2:32 PM

Last Reviewed: 

12/04/2017 14:26:56