The thromboelastography test does not require fasting and can be performed at any time of the day, either in the morning on an empty stomach, or after a meal or in the evening. The thromboelastogram is used to determine the patient’s basal coagulation function and also to monitor the effect of antiplatelet drugs, such as aspirin, clopidogrel, and tigretol. In addition, it can also determine the strength of antiplatelet drugs and their ability to inhibit platelets in patients, so as to guide the use of medication. The thromboelastography is used to determine the strength and effect of low molecular heparin after surgery, and the individualized treatment plan is formulated for the patient by the above judgment.