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Laboratory Test Directory

Staclot LA


Name Method Department Units
StaClot LA Clot detection
Core Lab, Coagulation

Specimen Requirements

Platelet poor plasma

Container Type Container Size Specimen Volume

Blue plastic tube (Citrate)

2.7 mL 2.7 mL

Frozen - 2 week(s)


Blue plastic tube (Citrate)

1.8 mL 1.8 mL

Frozen - 2 week(s)

Specimen Preparation

  • Fill tubes to appropriate mark.
  • Mix by gentle inversion immediately after collection
  • Centrifuge, remove plasma/serum and freeze
  • Plasma must be platelet free

Reasons for Rejection

  • Over or under filled tube
  • Clotted specimen
  • Not received within specified time frame
  • Gross hemolysis
  • Wrong collection tube
  • Capillary specimen
  • Specimen collected in glass tube
  • Current treatment with Unfractionated Heparin


Please indicate on the label the collection method, i.e. line draw with heparin, line draw without heparin, venipuncture. Also indicate whether or not the patient is on heparin therapy. Interpretation of results in not valid or possible on patients receiving heparin therapy. Centrifuge citrate tubes according to Lab policy, remove platelet-poor plasma, pool the plasma, aliquot and freeze. Send a minimum of two (2) aliquots of plasma.

CPT Code

  • 85732