Category: H

  • Haemophilia A

    The most common type of haemophilia, in which the inability to synthesise Factor VIII, a protein that promotes blood clotting, means that the blood clots very slowly.  

  • Haemophilia

    A disorder linked to a recessive gene on the X-chromosome in which the blood clots much more slowly than usual, resulting in extensive bleeding from even minor injuries. The gene is passed by women to their male children and the disorder is seen almost exclusively in boys. An inherited disorder of blood coagulation which results…

  • Haemoperitoneum

    A condition in which blood is found in the peritoneal cavity.  

  • Haemopericardium

    A condition in which blood is found in the pericardium. The presence of blood in the pericardium, the membranous sac which surrounds the heart. The condition may result from a myocardial infarction, leaking aneurysm, injury, or tumour. Because the pericardial blood compresses the heart, the latter’s pumping action is impeded, reducing the blood pressure and…

  • Haemolytic uraemic syndrome

    A condition in which haemolytic anaemia damages the kidneys. A disease of children resulting in acute renal failure. An illness with bloody diarrhoea and fever, usually caused by verocytotoxin produced by the bacterium E coli, most commonly type 0157, although sometimes by other microorganisms. It is followed after about 2 weeks by intravascular coagulation of…

  • Haemolytic jaundice

    Jaundice caused by haemolysis of the red blood cells.  

  • Haemolytic disease of the newborn

    A condition in which the red blood cells of the fetus are destroyed because antibodies in the mother’s blood react against them. A potentially serious disease of the newborn, characterized by haemolytic anaemia (excessive destruction of red blood cells) and jaundice. If severe, it may be obvious before birth because the baby becomes very oedematous…

  • Haemolytic

    Destroying red blood cells.  

  • Haemolysin

    A protein which destroys red blood cells.  

  • Haemogram

    The printed result of a blood test.