Ammonia

Last Modified: 2/14/2024 8:58:22 AM


Medical Necessity Documentation:  
Patient Preparation:  
Specimen Requirements:

3.0 mL Plasma from a Lavender Top Tube  - EDTA on ice
Collection Instructions: Due to smearing of print while on ice, please label specimen following procedure and a second label in the pocket of transport bag with requisition

1. Pre-Chill tube before collection (this step is preferred not required)
2. Place specimen in ice bath immediately after collection, before centrifugation
3. Centrifuge and separate specimen within 20 minutes of collection
4. Freeze or place on ice for immediate delivery to the laboratory
5. Keep on ice during transportation and delivery to testing department

Do not allow thawing
Do not collect by capillary draw
Do not collect in a microtainer
Do not collect in a Serum Separator Tube (SST or PST)
Minimum Volume: 0.5 mL
Transport & Storage: Temperature/Stability: 3 hours Iced
30 days Frozen
Rejection Criteria: Specimen not kept directly on ice; in specimen bag in separate pocket not allowed.
Reference Range: 11 - 32 umol/L
Critical Ranges:  
Test Comments:  
Methodology: Enzymatic
Clinical Significance:  
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Stat Eligible: Yes
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Parkview Dekalb Hospital, Parkview Huntington Hospital, Parkview LaGrange Hospital, Parkview Noble Hospital, Parkview Randallia Hospital, Parkview Regional Medical Center, Parkview Southwest , Parkview Wabash Hospital, Parkview Warsaw , Parkview Whitley Hospital
PHL Test Code: NH3
EPIC Test Code: LAB47
Alternate Test Names: NH3
Included Tests:  
CPT Coding: 82140

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