What causes low blood pressure?

Written by Zeng Wei Jie
Cardiology
Updated on September 17, 2024
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There are many causes of low blood pressure. A significant portion of chronic hypotension is due to physical constitution, with some patients who are generally frail having consistently low blood pressure but no symptoms. This type is quite common. Secondly, postural hypotension is also fairly common, often seen in elderly people or those taking antihypertensive medications, such as receptor blockers. These patients may experience transient dizziness and transient low blood pressure when getting up, known as postural hypotension. Moreover, the more common type is acute, sustained low blood pressure, which includes various causes of shock, myocardial infarction, cardiac tamponade, or acute blood loss, which can be life-threatening conditions requiring urgent treatment.

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Written by Zhang Yue Mei
Cardiology
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Can people with low blood pressure drink tea?

People with low blood pressure can drink tea. Currently, there are many types of tea in daily life: green tea, oolong tea, black tea, Tieguanyin, as well as some medicinal teas such as ginseng tea, astragalus tea, and goji berry tea. Regular consumption of these teas is beneficial for health, as they provide essential nutrients. The active ingredients in tea can enhance mental alertness, promote blood circulation, and increase heart vitality. Additionally, some medicinal teas like astragalus tea and goji berry tea have the effects of replenishing qi, nourishing yin, and supporting kidney health. By nourishing yin and supporting kidneys, and adjusting the blood through replenishing qi, these teas can help raise blood pressure.

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Written by Zhang Yue Mei
Cardiology
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The harm of low blood pressure

Low blood pressure can pose certain risks to the body, especially when it is persistently low, which may lead to insufficient blood supply to vital organs. The brain, particularly sensitive to ischemia and hypoxia, can suffer from inadequate blood supply due to prolonged low blood pressure, or even experience strokes. Low blood pressure can also lead to insufficient cardiac blood supply, causing ischemic heart disease. In particular, long-term low blood pressure can damage the kidneys, leading to renal failure and causing irreversible pathological changes. Therefore, patients with chronic low blood pressure should receive active treatment to alleviate their condition and protect vital organs.

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Written by Zhang Yue Mei
Cardiology
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What are the symptoms of low blood pressure?

Long-term low blood pressure can lead to general weakness, loss of appetite, palpitations, shortness of breath, dizziness, and blackouts. Due to the excessively low blood pressure, the important organs suffer from ischemia and hypoxia, causing symptoms of ischemia and hypoxia in various organs, especially cerebral hypoxia, which can manifest as nausea, vomiting, headaches, blackouts, and even fainting. Therefore, low blood pressure should be actively treated and improved. Severe low blood pressure requires the use of medications, replenishment of blood volume, and appropriate application of certain vasopressor drugs to raise blood pressure and maintain adequate blood supply to important organs.

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Written by Zhang Yue Mei
Cardiology
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How to regulate low blood pressure

How to adjust for low blood pressure depends on the causes of the low blood pressure and the severity of the condition. Different adjustments and treatments are necessary. Mild low blood pressure not secondary to any disease is caused by physical weakness and an unreasonable dietary structure leading to decreased blood pressure. This only requires adjusting the dietary structure, consuming a high-energy, high-nutrient diet, eating broths, and paying attention to rest to improve the state of low blood pressure. If the blood pressure is too low and accompanied by other diseases such as infection, allergies, or bleeding, which cause the low blood pressure, the primary disease should be treated first. At the same time, under the guidance of a doctor, effective antihypotensive medication should be used for treatment.

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Written by Zhang Yue Mei
Cardiology
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What is the range for low blood pressure?

Blood pressure is an important indicator of human vital signs. Normal blood can meet the demands of human life activities and the blood supply to major organs. Too low blood pressure can severely affect human health and even endanger life. Normal blood pressure ranges from 90 to 140 mmHg for systolic and 60 to 90 mmHg for diastolic pressure. A systolic pressure below 90 mmHg and a diastolic pressure below 60 mmHg is considered low blood pressure. Diagnosis should also take into account underlying diseases, clinical symptoms, and other factors.