低血压 - When Blood Pressure Is Too Low
How low is too low for blood pressure?
A low blood pressure reading is usually good. Some people with very low blood pressure have a condition called hypotension. This occurs when blood pressure is less than 90/60 mm Hg. Low blood pressure is usually not harmful unless there are other symptoms that concern a health care professional.
Symptoms of low blood pressure
Constantly low blood pressure can be dangerous if it causes signs 和 symptoms such as:
- 混乱
- 头晕
- 恶心想吐
- 晕倒
- 乏力
- 颈部或背部疼痛
- 头疼
- 视力模糊
- 心悸, or feelings that your heart is skipping a beat, fluttering or beating too hard or too fast
Underlying causes of low blood pressure
Low blood pressure can happen with:
- 长线上电子游戏飞禽走兽卧床休息
- 长线上电子游戏飞禽走兽站立
- 抑郁症
- 帕金森病
- 怀孕
- 脱水
- Certain medications 和 substances can cause low blood pressure including:
- Diuretics 和 other drugs that treat high blood pressure
- 心脏药物 比如受体阻滞剂
- Drugs for 帕金森病
- 三环类抗抑郁药
- Erectile dysfunction drugs, particularly in combination with nitroglycerine
- 毒品
- Heart problems: Heart conditions that can lead to low blood pressure are:
- 内分泌的问题:
- 不够甲状腺
- 阿狄森氏病
- 低血糖
- 糖尿病
- Nutritional deficiencies: A lack of the essential vitamins B-12 和 folic acid can cause anemia, a lower-than-normal amount of healthy red blood cells. This can lead to low blood pressure.
- 危及生命的场景
- Septic shock: This can occur when bacteria from an infection enter the bloodstream. The bacteria then produce toxins that affect the blood vessels. This can lead to dangerously low blood pressure.
- Allergic reaction: Anaphylactic shock is an allergic reaction that can lead to death. It can happen in people who are highly sensitive to drugs such as penicillin. It also can happen after eating certain foods or being stung by a bee or wasp.
- Decreases in blood volume: A significant loss of blood from major trauma or severe internal bleeding reduces blood volume. This can lead to a severe drop in blood pressure.
If you notice a sudden decline in blood pressure
One reading that is lower than normal is usually not cause for alarm unless you are having other symptoms or problems. If you are dizzy, nauseous or have other symptoms, contact your health care professional. Keep a record of your symptoms 和 when they happened. Is low blood pressure related to low heart rate? 找出.
