Test Code LAB0200485 Ammonia (NH3), Plasma
Methodology
Enzymatic
Performing Laboratory
CentraCare Laboratory Services
Specimen Requirements
Specimen Type: Plasma
Container/Tube: Lavender top (EDTA)
Specimen Volume: 1 mL plasma
Minimum Volume: 0.5 mL
Collection Instructions:
1. Place specimen on ice.
2. Spin down and aliquot plasma from cells into separate tube within 15 minutes of draw. Keep plasma on ice.
3. Freeze plasma if testing can not be performed within 2 hours.
Collection at CCLS:
Specimen Type: Plasma
Container/Tube: Green top (Sodium heparin, Lithium heparin, & PST) -or- Lavender top (EDTA)
Specimen Volume: 1 mL plasma
Minimum Volume: 0.5 mL
Collection Instructions:
1. Place specimen on ice.
2. Spin down and aliquot plasma from cells into separate tube within 15 minutes of draw. Keep plasma on ice.
3. Freeze plasma if testing can not be performed within 2 hours.
Specimen Transport Temperature
Refrigerated: 2 hours
Frozen: 24 hours
Reference Values
18-72 mcmol/L
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
82140