* This volume does not allow for repeat testing
1. Place specimen in ice bath immediately after collection, before centrifugation
2. Keep on ice during transportation and deliver directly to testing laboratory
Centrifuge and separate from cells within 20 minutes of collection
Freeze or place on ice immediately after centrifugation
Do not allow thawing.
Specimen not kept directly on ice
Specimen delivered to lab in incorrect pocket of transport bag
Thawed specimen
Capillary specimen
Collected in microtainer tube
Gel Separator Tube (SST or PST)
Whole blood is only stable 20 minutes iced
Plasma
Plasma
Plasma
Plasma
* This volume does not allow for repeat testing
Centrifuge specimen and remove the plasma from the cellular material within 15 minutes of collection
Keep specimen on ice until analysis
Serum should not be used for ammonia measurements because ammonia is produced during the clotting process
Do not use hemolyzed specimens
11 - 32 umol/L
Same Day/1 to 2 days
01423644
82140