These data prove that abnormally high oxygen unsaturation of the blood is a cause of cyanosis. The fact that the lowest value of oxygen unsaturation (in the venous blood) associated with cyanosis is about 8 volumes per cent seems to indicate that this amount of reduced hemoglobin is the lowest capable of producing a cyanotic color. We shall later discuss this point more in detail. Table III sho...

Premature newborns have a lower survival expectancy than full term neonates. Determining their possible health risks is crucial. Training for health risk assessment is one of the factors that might help in lowering the mortality of premature neonates. The paper describes the design approach to develop a premature neonate simulator showing colorization of the facial skin to simulate cyanosis to ...

Accepted 25 November 1997 A 19-year-old woman was admitted to hospital for the evaluation of central cyanosis. She was complaining of fatigue, progressive dyspnoea, worsening in the upright position, and marked cyanosis of the lips and nail beds. She described a mild bleeding diathesis with epistaxis and prolonged menstrual bleeding during the last 6 months. She had no history of hepatitis, tra...