fotokoaguláció

Fotokoaguláció is a Hungarian term that translates to "photoagglutination". It refers to a laboratory technique used in blood transfusion to examine the ability of antibodies in the donor's serum to bind to red blood cells from another individual.

The procedure involves mixing a small sample of the donor's serum with red blood cells from a donor of a different blood group. The mixture is then observed under a microscope to see if the red blood cells become clumped or agglutinated. This is an indication that the antibodies in the donor's serum are reacting with the antigens on the red blood cells.

Fotokoaguláció is a rapid and sensitive method for detecting the presence of antibodies that can cause hemolytic transfusion reactions. It is commonly used to screen blood donations before transfusion to ensure that they are safe for the recipient.

The technique is also known as the "Tube test" or "Immotest". It involves rapidly agitating a tube containing the mixed serum-red blood cell sample, and observing the degree of agglutination that occurs. A positive result is indicated by clumping or agglutination of the red blood cells.

Fotokoaguláció is an essential tool in transfusion medicine, helping to prevent adverse reactions that can be life-threatening. By allowing quick and efficient screening for antibodies, this technique plays a critical role in ensuring the safety of blood transfusions.