Question: Information: - In medicine (hematology), bleeding diathesis (h(a)emorrhagic diathesis) is an unusual susceptibility to bleed (hemorrhage) mostly due to hypocoagulability, in turn caused by a coagulopathy (a defect in the system of coagulation). Several types are distinguished, ranging from mild to lethal. Also, bleeding diathesis can be caused by thinning of the skin or impaired wound healing. - Bleeding, also known as hemorrhaging or haemorrhaging, is blood escaping from the circulatory system. Bleeding can occur internally, where blood leaks from blood vessels inside the body, or externally, either through a natural opening such as the mouth, nose, ear, urethra, vagina or anus, or through a break in the skin. Hypovolemia is a massive decrease in blood volume, and death by excessive loss of blood is referred to as exsanguination. Typically, a healthy person can endure a loss of 1015% of the total blood volume without serious medical difficulties (by comparison, blood donation typically takes 810% of the donor's blood volume). The stopping or controlling of bleeding is called hemostasis and is an important part of both first aid and surgery. - Glanzmann 's thrombasthenia is an abnormality of the platelets . It is an extremely rare coagulopathy ( bleeding disorder due to a blood abnormality ) , in which the platelets contain defective or low levels of glycoprotein IIb / IIIa ( GpIIb / IIIa ) , which is a receptor for fibrinogen . As a result , no fibrinogen bridging of platelets to other platelets can occur , and the bleeding time is significantly prolonged . - Coagulopathy (also called a bleeding disorder) is a condition in which the bloods ability to coagulate (form clots) is impaired. This condition can cause a tendency toward prolonged or excessive bleeding (bleeding diathesis), which may occur spontaneously or following an injury or medical and dental procedures. Of note, coagulopathies are sometimes erroneously referred to as "clotting disorders"; a clotting disorder is a predisposition to clot formation (thrombus), also known as a hypercoagulable state or thrombophilia. - Surgery (from the "cheirourgik" (composed of , "hand", and , "work"), via , meaning "hand work") is an ancient medical specialty that uses operative manual and instrumental techniques on a patient to investigate and/or treat a pathological condition such as disease or injury, to help improve bodily function or appearance or to repair unwanted ruptured areas (for example, a perforated ear drum). 'glanzmann's thrombasthenia' is related to which object entity through the relation of 'medical specialty'? Choices: - hematology - surgery
Answer:
hematology