Clot Retraction
Synonyms
None
Purpose
Clot retraction test is used to assess platelet function and aid in diagnosis of bleeding disorders..
Patient Preparation
There are no special requirements for this test..
Samples
4 ml of whole blood should be collected in plain (red top) tubes. No anticoagulant should be used to maintain validity and samples should not be stored.
Reference Range
0-2 hrs
Results Turnaround
Within 24 hours after sample collection.
Diseases / Diagnostic indicators
A longer than normal clot retraction time could indicate thrombasthenia, low fibrinogen, thrombocytopenia or high RBC concentrations.