Lt green plasma separator (PST)

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting

Spin within two (2) hours of sample collection

Lt green plasma separator (PST)

Gold serum separator (SST) tube

Immediately following collection, mix sample thoroughly by gentle inversion, 5 times

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

Gold serum separator (SST) tube

Refrigerated (preferred) - 7 days

Frozen - 6 months

Ambient - 3 days

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

Enzymatic coloremetric