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Prevention of Low blood pressure (hypotension)

What is hypotension (Low blood pressure) ?
Hypotension (Low blood pressure) is generally considered if systolic blood pressure less than 90 mm Hg or diastolic blood pressure less than 60 mm Hg.
However, in practice, the blood pressure is considered too low only if noticeable symptoms are present.

For patients with high blood pressure, in some cases, they may have a low blood pressure?
Yes, it is possible. Hypertension patients have Hypotension (Low blood pressure), it is not uncommon. We can understand this: the purpose of medication to reduce blood pressure, but excessive use of drugs may cause blood pressure is too low. Some people use inappropriate drugs, excessive use of drugs resulting in low blood pressure. Especially the elderly, some older people with a drug called alpha blockers (Because there are a lot of old people have prostate hyperplasia, must use the drug), it is a very good antihypertensive drugs, but the drug is very easy to cause postural hypotension, this is very dangerous, postural hypotension will lead to insufficient blood supply to the brain, this time will lead to syncope, faint. Faint for the elderly is a very terrible thing, the elderly once fall, the consequences will be unbearable to contemplate. Therefore, the elderly medication should pay attention to monitor blood pressure, as far as possible to avoid the occurrence of low blood pressure, especially in the use of alpha blockers such drugs should pay more attention to their blood pressure.
But in the case of you have to use this kind of medicine, what should you do?
We still have a way, with this kind of medicine person, need to pay attention to a basic concept: You can't suddenly change posture, especially from supine to standing, sitting to stand up suddenly, because the change of body position leads to low blood pressure, low blood pressure leads to insufficient blood supply to the brain. Therefore, some patients with high blood pressure in the use of medication should pay attention to the occurrence of postural hypotension.
There is an approach: you lie to measure blood pressure, and then stand to measure blood pressure. If both postural blood pressure values differ by more than 20 mmHg, we think that this person may have a postural hypotension. There is no good way to deal with this kind of person, for these people, postural changes must be slow. There's a way to call Three a half minutes. What is the Three a half minutes ?
Sleep wake up, don't immediately get out of bed, opened his eyes, lying in bed for a half minute, and then sat on the bed, sit for a half minute, and then stand up, stand for a half minute, then move forward.
Any drugs can cause low blood pressure, as long as the drug in particular can reduce your blood pressure, although it is a good medicine to control your blood pressure, but excessive use of drugs, it will lead to low blood pressure. If your blood pressure is too low, you can reduce the amount of drug use or replace the drug.
Therefore, after taking medicine should pay attention to monitor their blood pressure.

Non drug situation
Because of the difference of the individual body, some people have a kind of physiological vasomotor disturbance. What is the vasomotor disturbance?
That is to say, a person but a change in your position, from lying to standing, blood sedimentation in the lower limbs, this time will cause insufficient blood supply to the brain, but the physiological brain will send a message, commanding lower limb vascular contraction, more blood flow to the brain, this avoids the brain's lack of blood supply. But some people the unconditioned reflex is weakened, it is the existence of physiological, we are called vasomotor disturbance. If the person under the intervention of the medicine, the change of body position, this unconditioned reflex is further suppressed, then more prone to the occurrence of postural hypotension. All of the patients with hypertension, in drug use, have to monitor the effect of medication, to achieve the effect is our goal, but excessive fall in blood pressure should also be avoided. Dizziness after taking the medicine, you still doubt that blood pressure is high, in fact, is your blood pressure may have too low, as a result, you further increase the dose, further deterioration of the situation. So we should regularly monitor blood pressure, especially when you're sick and dizzy, and more to measure your blood pressure, compared with when you're not dizzy, is elevated blood pressure leading to dizziness or a low blood pressure cause dizziness. This must help the doctor identify, because usually the doctor does not beside you, when you have symptoms, you should measure blood pressure, in order to help doctors diagnose.
All medication for high blood pressure patients, be sure to pay attention to monitoring blood pressure, to avoid excessive medication, resulting in low blood pressure (hypotension) .

Some other hypotension (low blood pressure):
Heart failure caused low blood pressure.
Body extremely weak people, blood pressure is low.
The shock of the people, the blood pressures of shock is almost 0.

See also:
High blood pressure is a silent killer
Prevention of Low blood pressure (hypotension)
Your blood pressure might change throughout the year
Should patients take hypotensive before their return visits to doctor?
Drugs for complications of hypertension
How to Recognize Antihypertensive drugs Side Effects?
The Antihypertensive Characteristics of Antihypertensive Drugs and the Target People
Masked hypertension (high blood pressure)
Necessary Tests and Examination for People with high blood pressure
How do Hypertensive Patients Lower Blood Pressure Stably?
Blood pressure goals for elderly
The greater the pulse pressure is, the more risks there will be
Narrow the pulse pressure without non antihypertensive drug
Systolic hypertension in elderly (SBP > 160 mmHg, DBP < 90 mmHg)
Decreased systolic pressure can better indicate the actual effects of blood pressure control
Drugs for complications of hypertension in the elderly
Will Exceedingly Decreased Blood Pressure Lead to Stroke?

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