What is the purpose of an anticoagulant in blood collection?

The purpose of an anticoagulant in blood collection is to prevent coagulation of the blood sample. Anticoagulants are substances that inhibit the various steps of the coagulation cascade, thereby maintaining the blood in a liquid state. This is crucial when preparing blood samples for laboratory analysis, as it allows for accurate tests of cellular components, plasma, and other analyses that require the blood to remain fluid.

Maintaining the sample in a non-coagulated state is essential for tests such as complete blood counts or coagulation studies, where the presence of clots could interfere with the results. Therefore, the use of anticoagulants ensures that the blood retains its natural composition for diagnostic purposes, allowing healthcare professionals to make informed decisions based on precise laboratory findings.