A commonly used hematological reagent is the blood coagulation test. This test determines the ability of the blood to form a clot. This is done to evaluate for a possible clotting disease or disorder, such as a form of anemia or a defect in the clotting system. The results of the test can help confirm the diagnosis and determine the appropriate treatment. It is also one of the mandatory tests if the patient will undergo surgery, given the possibility of hemorrhage. There are also some specialized hematological reagents for the detection of hematological biometry. These test blood biometry for malignant conditions such as leukemia and tumors. Early detection is key to the treatment and prevention of these diseases. This test is also used to monitor the progress of existing treatment.

Depending on the area of study to which it is intended to be applied, reagents can be classified into functions such as analysis reagents, synthesis reagents, reaction reagents, biological reagents, catalytic reagents, distillation reagents and laboratory network reagents. These are some of the most common reagents used in the laboratory. Analytical reagents are used to evaluate a variety of characteristics, such as color, concentration, density, pH, polarity, and degree of combustibility. These reagents are generally used to perform a variety of tests, such as soil, water, air, and food analyzes. Their main characteristic is their high purity, which allows them to be used as standard reagents in quantitative analysis. Synthetic reagents are used to transform one or more chemicals into another of desired properties. These reagents are used to carry out a variety of experiments, such as producing a liquid solution from a mixture.