Centralized Core Laboratory:Hematology
Blue top (sodium citrate) tube
2.7 mL (minimum 1.8 mL)
Must use appropriate sodium citrate tube based on volume of blood drawn (1.8 mL or 2.7 mL tube)
Cause for rejection:
Sample hemolyzed, clotted, diluted with IV fluid; contam with heparin; improperly filled; not kept on ice; received >1 hr after drawn.
Daily, 24 hours; STAT
Clottable Protein Assay (Clauss)
Indicate clearly if a specimen has been drawn from an arterial line or from a line that has been rinsed with heparin. Please indicate if the patient is currently receiving anticoagulant therapy.
If collected at an offsite location, send by a STAT Courier to Hospital lab.
Reference range: 150-410 mg/dL
Clottable Fibrinogen; Factor I; Fbg