After squatting for a long time, I suddenly stood up, dizzy… am I hypotensive?

In your life, you may have encountered these situations:

If you squat in the bathroom for a long time, or lie in bed for a long time, you will feel dizzy, dark eyes, and even dizzy.

Are these conditions hypotension? Does it matter? Which hypotension needs to go to the hospital? Listen to Dr. Clove.

Is what hypotensive? Does it matter?

Under normal circumstances, adults whose systolic blood pressure (commonly known as high pressure) is lower than 90 mmHg or diastolic blood pressure (commonly known as low pressure) is lower than 60 mmHg will be considered as low blood pressure.

However, this does not mean that once the blood pressure is lower than 90/60 mmHg, medical treatment is required or corresponding treatment is carried out.

First of all, the normal blood pressure range is based on the investigation and statistics of a large number of people. Most people are normal within this range, while a few people may be normal even if their blood pressure is lower than 90/60 mmHg without corresponding symptoms.

In other words, if your blood pressure is at 85/55 mmHg for a long time, but there is no discomfort in life, it doesn’t matter if your blood pressure is lower at all.

Secondly, sleep, pregnancy, different postures of the body, eating different foods or taking certain drugs, etc., will cause short-term changes in blood pressure, which is also normal.

Do you need to go to the hospital in what?

People with low blood pressure for a long time should pay attention to whether they have dizziness, inattention, exhaustion, blackening in front of them, dim eyesight, nausea, inability to lift their spirits, fear of cold, even fainting, etc. If so, they need to go to the hospital to find out the causes and give targeted treatment.

Why does hypotension occur?

There are many causes of hypotension, which can be roughly divided into the following three situations:

1. Postural (orthostatic) hypotension

When lying or squatting, you suddenly stand up, and your blood pressure will drop instantly, leading to dizziness and even fainting. However, you can recover on your own after a while. This kind of situation belongs to postural hypotension.

This kind of hypotension is common in the elderly, pregnant women, long-term bed rest and other conditions. Some studies have found that the use of antihypertensive drugs will increase the incidence of orthostatic hypotension. Most of the hypotension of pregnant women is temporary and can be recovered after giving birth to the baby.

For healthy young people, if they suddenly stand up while lying or squatting, they will also have similar symptoms. Don’t worry. Similarly, some people have hypotension within 1-2 hours after meals, but the reason is still unclear, which may be related to blood accumulation in the digestive system after meals.

2. Neurogenic hypotension

Neurogenic hypotension is caused by the brain mistakenly believing that the body’s blood pressure is too high and thus issuing a command to lower blood pressure, which is related to neurological diseases.

3. Acute severe hypotension associated with shock

Severe sudden drop in blood pressure will be manifested as shock. During shock, in addition to severe hypotension, there may also be signs of delirium, apathy, wet and cold skin, weak and rapid pulse and shallow and rapid breathing.

Excessive blood loss, severe infection, severe dehydration, severe diarrhea, severe burns, allergies, heart diseases and poisoning may all cause shock.

Blood pressure is low, do you need to pay attention to what?

When symptomatic hypotension occurs, we must go to the hospital to see a doctor. It is very critical and important to find out the cause of the disease. Targeted drug treatment is needed. Of course, we also need to cooperate with treatment to improve our lifestyle from the following aspects:

1. Ensure nutrition and eat more salt if necessary.

Eating more salt can help blood pressure rise, but it may also increase the risk of heart failure (the elderly have a higher risk), etc. Therefore, before choosing whether to eat more salt and how much to eat, one must consult a doctor’s advice and then make some adjustments according to one’s physical condition.

2. Drink more water and drink less

Drinking water can increase blood volume and reduce the risk of dehydration, but alcohol can reduce blood pressure by dilating blood vessels.

Step 3 Wear Stretch Socks

Stretch socks can redistribute part of the lower limb blood volume and relieve symptoms.

Step 4 Raise your lower limbs

If you have related symptoms, pay attention to stay in bed immediately, raise your lower limbs above the heart level, and increase the return blood volume to relieve the symptoms.

5. Patients with orthostatic hypotension

Pay attention to getting up slowly.

6. Patients with neurogenic hypotension

Avoid long standing, excessive sadness, fear and other factors inducing hypotension.

Low blood pressure, am I anemic?

Hypotension and anemia are two different concepts!

Hypotension refers to the low pressure on the arterial wall, while anemia refers to the low number of red blood cells and their hemoglobin content in the blood. At this time, blood pressure is mostly normal.

This is like having a pipe filled with water. Hypotension refers to the pressure on the wall of the pipe and anemia refers to the content of certain things in the water.

Many people easily confuse anemia with hypotension because they all suffer from fatigue and dizziness. However, hypotension is prone to dizziness because blood vessel pressure is low enough to send blood to the brain. Anemia is prone to dizziness because there are fewer red blood cells in the porter of oxygen in the blood, resulting in insufficient oxygen to the brain.

Can people with low blood pressure donate blood?

People with hypotension are not recommended to donate blood.

Although theoretically, due to individual differences, even if the blood pressure is lower than 90/60 mmHg, the body will not be affected. However, for most people with hypotension, especially those with symptoms at ordinary times, giving 200 ~ 400 ml of blood may cause shock.

It is better to stabilize your blood pressure first.