Ammonia, Blood NH3

Synonyms

Allscripts (AEHR) Order Name

Ammonia, Serum

Sunrise Clinical Manager (SCM) Order Name

Ammonia, Serum

Clinical Info

Specimen Type

Blood

Container

Lavender Top Tube

Collection Instructions

Specimen should be analyzed within 30 minutes of draw.
Container/Tube: Lavender top EDTA tube
Specimen: 1mL EDTA plasma ( 1 lavender microtainer for pediatric draws)
Transport Temperature: Frozen
Stability: Room Temperature (plasma or whole blood) Unacceptable
Refrigerated 2 Hours
Frozen Plasma 3 Weeks

Draw blood in a lavender-top (EDTA) tube(s). Spin down, separate plasma from cells, immediately freeze 1 mL of EDTA plasma in plastic vial.

Transport Instructions

Frozen

Specimen Stability

Room Temperature (plasma or whole blood) Unacceptable
Refrigerated 2 Hours
Frozen Plasma 3 Weeks

Methodology

Enzymatic with glutamate dehydrogenase

Days Performed

Monday through Sunday

Performing Laboratory

Northwell Health Laboratories

CPT

82140

PDM

5300370

Result Interpretation

11.0 - 55.0  µmol/L
Ammonia increases rapidly due to degradation of serum proteins. Elevated results should be interpreted with caution and repeat testing considered.

Forms