One 5 mL lavender (EDTA) top tube. Protected from light.

Also acceptable: Frozen plasma collected in: green (sodium heparin) top tube, protected from light green (lithium heparin) top tube, protected from light

Frozen serum - protected from light

1 mL plasma frozen (Min: 0.5 mL).

* Collection Instructions *

• Centrifuge within 1 hour of collection.
• Immediately separate plasma or serum from the cells into an amber transport tube to protect from light.
• Freeze. Do not thaw.
• Samples received frozen but not protected from light are acceptable.
• If unable to centrifuge immediately, sample should be covered with aluminum foil immediately and placed on ice until plasma or serum can be separated from cells.
• Transport plasma or serum to the laboratory frozen.

Patient Preparation

• Fasting for a minimum of 8 hours required.
• Patient should refrain from eating liver and taking multivitamins or vitamin K at least 24 hours before sample collection.

Ambient: 24 hours

Refrigerated: 24 hours

Frozen: 90 days

• Gross hemolysis
• Grossly lipemic
• Received room temperature
• Received refrigerated