What factors can influence the results of a coagulation test?

Improper sample collection and medication are critical factors that can significantly influence the results of coagulation tests. For instance, if a blood sample is not drawn correctly—such as being hemolyzed, contaminated, or collected in an inappropriate tube—the results may be inaccurate, leading to potential misdiagnosis or mistreatment. Additionally, certain medications, including anticoagulants like warfarin, can directly affect coagulation pathways and skew test outcomes. Understanding the importance of proper sample collection techniques and the impact of medications helps ensure that coagulation tests yield reliable results, which are essential in managing and monitoring patients with clotting disorders or those on anticoagulant therapy.