Vygotsky's social account of psychology is comprehensible when viewed in relation to his political views and his early work experience. A brief discussion of this context is therefore in order before explaining the details of his psychological stand- point.
1 Central cyanosis and its causes are all associated with peripheral cyanosis. 2  Decreased pumping of blood by the heart or reduced cardiac output. 3  This is seen in heart failure or circulatory shock. 4  Diseases of circulation like thrombosis or embolism. 5  Constriction of blood vessels of the limbs, fingers and toes.
Cyanosis that affects the skin generally and/or lips. When all the skin and/or lips have a blue tinge, it's known as central cyanosis and is usually a sign of low levels of oxygen in the blood. Common causes for central cyanosis are listed below.A problem with the lungs:f a person's skin or lips turn blue, it's usually caused by low blood oxygen levels or poor circulation. It can be a sign of a serious problem, so it's important to seek medical advice.