We are experiencing higher than usual volumes at our ER. Please see the wait times here.
Search All

Lab Test Dictionary

Ammonia


Synonyms

NH3; NH4

Specimen Type

Plasma

Performing Lab

RCHSD Chemistry


Epic ID

LAB47

Lab Test Days

As received

Standard TAT

1 Hour

Stat TAT

1 Hour


Collection Information

Specimen Required

0.6-1 mL Blood

Container Type

Light Green (Lithium Heparin PST)

Collection Instructions

Plasma collected in an EDTA (lavender-top) tube is also acceptable. Place tube on ice immediately after collection. Satellite locations must send patient to RCHSD for draw. If physician requests "Free-Flowing" draw without tourniquet.


Processing Information - Lab Use Only

Transport Temperature

On Ice

Specimen Stability

Room Temp=8 Hours; Refrigerated=14 Days; Frozen=1 Month

Rejection Criteria

Serum; Hemolysis

Test Volume Required

0.5 mL Plasma

Minimum Test Volume

0.3 mL plasma

Processing Instructions

Centrifuge and separate plasma within 15 minutes of collection. Deliver directly to Chemistry.


CPT Codes

82140


Revised

07-07-21

Initials

DM