Common unqualified blood samples are divided into the following categories: 11. Coagulation blood sample2. Hemolytic blood sample3. Blood cell adhesion to the wallCoagulation blood sample: refers to a specimen in which varying degrees of fibrin precipitation or blood clots occur after the blood sample is collected by an anticoagulant tube.

Common unqualified blood samples are divided into the following categories:1. Coagulation blood sample2. Hemolytic blood sample3. Blood cell adhesion to the wallCoagulation blood sample: refers to a specimen in which varying degrees of fibrin precipitation or blood clots occur after the blood sample is collected by an anticoagulant tube.