Читать книгу Managing Medical and Obstetric Emergencies and Trauma - Группа авторов - Страница 116

If the woman is conscious and talking sensibly, she is not only breathing through an open airway, she is perfusing her cerebral cortex with sufficient oxygenated blood (50% of the normal cardiac output). Increasing hypovolaemia and subsequent cerebral hypoperfusion cause alterations in the level of consciousness. These alterations may begin with agitation and, if untreated, may proceed through confusion and aggression to eventual unresponsiveness and death.