Gold serum separator (SST) tube

Immediately following collection, thoroughly mix sample by gently inverting 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

Red serum vial/tube, 5 mL

Lavender (EDTA), 4mL

Lavender:

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

Red:

1. Allow sample to clot
2. Spin within two (2) hours of sample collection
3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum

Lavender:

1. Spin within two (2) hours of sample collection
2. Transfer plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as EDTA plasma

Transfer vial/tube with cap - 12mL (LabCorp)

Ambient (preferred) - 22 days

Refrigerated - 22 days

Frozen - 12 months

Freeze/thaw cycles - stable x9

• Visible hemolysis
• Plasma other than EDTA

Enzyme Immunoassay (EIA)

< 22.2 ng/mL

Galectin-3 levels > 17.8 ng/mL are present in a proportion of patients with NYHA class II-IV. Such elevated levels are associated with a more progressive form of heart failure resulting in an increased hazard for death or hospitalization.