What does CrossMatch mean?

CrossMatch is a medical test that confirms the compatibility of donor blood, tissue or organs. The doctor asks for this test after basic screening suggests that donor material should be compatible. The aim is to identify any reactions that could cause transfusions or transplantation to be dangerous. In an emergency, the doctor may ask for immediate donor material that corresponds to the patient's type but does not necessarily cross. This usually occurs when the risk of death without transfusion is greater than the risk of illness or injury. If the reaction is negative, nothing happens. Pacient nemá protilátky vůči buňkám dárce nebo je má v tak nízkých koncentracích, že nespustí imunitní odpověď. If the sample begins to cluster, it suggests that antibodies are present and transplantanellze is safely performed because the patient's immune system attacks donor material.

Many LaiThe KIN is familiar with the concept of matches by type, often using ABO's blood group. Patients with blood from different groups may experience reactions during transfusions due to antibodies. However, the type is not the only measure of compatibility. The patient could gain blood transfusion, which is theoretically a consensus and is still experiencing a reaction because of other components in the blood known as factors. Crossmatch is looking for factors that could cause a problem.

In addition to performing physical crossmatch, it is also possible to perform electronic. This relies on the detailed blood profile of the patient's blood. If the patient has negative screening antibodies, the computer can find a match in the donor database. This type of CrossMatch is not available in all settings, but can be useful in place, such as a blood bank for quick identification of blood units that should be safe for transfusion.

The

transfusion and transplantation ideally include type and crossmach before the recipient comes into contact with donor material. This is an important part of SCReening for patient safety. Before donor blood even enters the fund of available material, it will also be strictly projected on signs of infectious organisms and other problems that could be dangerous transplantation or transfusion. For example, blood from a patient with hepatitis C cannot be used in transfusions because it would infect the recipient.