Lt green plasma separator (PST)

Immediately after collection, mix tube thoroughly by gentle inversion, 8 - 10 times, to prevent clotting

Spin within two (2) hours of sample collection

Lt green plasma separator (PST)

Gold serum separator (SST) tube

Lavender (EDTA), 4mL

Immediately following collection, thoroughly mix sample by gently inverting 5 times

Gold:

1. Allow sample to clot for a minimum of 30 minutes
2. Spin within two (2) hours of sample collection

EDTA:

1. Spin and aliquot plasma into pour off tube

Gold serum separator (SST) tube

False bottom plasma/serum transport vial/tube (AHL)

Refrigerated (preferred) - 7 days

Ambient - 7 days

Frozen - 1 year

• Improper labels (unlabeled or mislabeled)
• Hemolysis (some procedures)
• Improper anticoagulant or ratio
• Delay in transport
• Improper storage temperature affecting results
• Improper container
• Leaking container resulting in compromised specimen
• Quantity not sufficient (QNS)

Enzymatic Urease

0 - 1 yr:  4 - 19 mg/dL

1- 18 yr:  5 - 18 mg/dL

18 - 60yr:  6 - 20 mg/dL

60 - 90yr:  8 - 23 mg/dL