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Brain and Nervous System
Dizziness and Vertigo
17
Jun
Jun
Dizziness refers to impairment in spatial perception and stability. It can be used to mean vertigo, presyncope, disequilibrium, or for a non-specific feeling such as giddiness or foolishness.
• Dizziness refers to impairment in spatial perception and stability. It can be used to mean vertigo, presyncope, disequilibrium, or for a non-specific feeling such as giddiness or foolishness.
• One can induce dizziness by engaging in disorientating activities such as spinning.
• Vertigo is a specific medical term used to describe the sensation of spinning or having one’s surroundings spin about them. Many people find vertigo very disturbing and often report associated nausea and vomiting.
• Disequilibrium is the sensation of being off balance, and is most often characterized by frequent falls in a specific direction. This condition is not often associated with nausea or vomiting.
• Presyncope is lightheadedness, muscular weakness and feeling faint as opposed to a syncope, which is actually fainting. • Non-specific dizziness is often psychiatric in origin. It is a diagnosis of exclusion and can sometimes be brought about by hyperventilation.
• A stroke is the cause of isolated dizziness in 0.7% of people who present to the emergency room. When you’re dizzy, you may feel lightheaded or lose your balance. If you feel that the room is spinning, you have vertigo.
• A sudden drop in blood pressure or being dehydrated can make you dizzy. Many people feel lightheaded if they get up too quickly from sitting or lying down.
• Dizziness usually gets better by itself or is easily treated. However, it can be a symptom of other disorders. Medicines may cause dizziness, or problems with your ear. Motion sickness can also make you dizzy. There are many other causes. • If you are dizzy often, you should see your health care provider to find the cause.