Fainting, Causes, Signs and Symptoms, Diagnosis and Treatment. скачать в хорошем качестве

Fainting, Causes, Signs and Symptoms, Diagnosis and Treatment.

. Chapters 0:00 Introduction 0:38 Causes of Fainting 2:34 Symptoms of Fainting 3:04 Diagnosis of Fainting 3:44 Treatment of Fainting Fainting is a sudden, brief loss of consciousness from a lack of oxygen to the brain. • Medically referred to as syncope, a fainting episode has no medical significance, but sometimes it may be due to a serious illness, condition, or disorder. • Every case of fainting should be treated as a medical emergency until a cause is ascertained and symptoms treated. It is important to figure out what triggered the fainting episode and prevent it from happening again. • Anybody with a recurring episode of fainting should seek medical care. CAUSES Fainting is most commonly caused by a temporary glitch in the part of the nervous system that controls heart rate and blood pressure, usually in response to a trigger. This may cause the heart rate and blood pressure to drop suddenly, leading to reduced blood flow the brain, and in turn, resulting in a brief loss of consciousness. This type is called neurocardiogenic syncope. Common triggers of neurocardiogenic include: • Seeing blood • Heat exposure • Standing still for long periods of time • An unpleasant sight • Sitting suddenly • Sudden emotional upset such as when receiving bad news • Extreme embarrassment • Fear of bodily injury Fainting can also result from a fall in blood pressure after standing up rapidly from a lying down or sited position, referred to as orthostatic hypotension. This condition is usually common in older adults, particularly those aged over 65. Possible triggers of orthostatic hypotension include: • Untreated diabetes • Alcohol • Medications for high blood pressure • Dehydration • Antidepressants • Neurological conditions such as Parkinson’s disease • Carotid sinus syndrome