Low blood pressure is a formidable health care providers to address the clinical manifestations. Although high blood pressure known as the “silent killer” because it is with some acute symptoms, hypotension (hypo = low voltage = pressure +) patients may be normal, without any symptoms but can also be very important if you are with the normal bodily functions.
Sometimes the bass is good, and this goal will remain in control of blood pressure achieved. Sometimes the bass is a bad thing, because there the pressure is not sufficient to provide blood flow to the organs of the body.

For low blood pressure is a problem, need to work with a low number of related symptoms. Below the 120/80 reading may be normal depending on the clinical situation. Many people have less than 100 systolic blood pressure, but some pressure development, the symptoms down. The symptoms of low blood pressure occurs because one or more organs of the body do not get enough blood supply.
If low blood pressure was normal for a patient, then there would be no symptoms. If the symptoms are low blood pressure, the patient may feel dizzy, dizziness, weakness, shortness of breath or chest pain. These symptoms depend on its lack of adequate organ blood flow.
Reading of blood pressure in two parts, and expressed as a percentage. “Normal” blood pressure, for example, 120/80 (80 120) and measures the pressure in the arteries of the body. Systolic blood pressure, quantity, measure, in the heart contracting (shrink), to stimulate the body pressure of the blood vessels. Diastolic pressure, measures to reduce the number of intra-arterial relaxation, when the heart is at rest the pressure.
Normal blood pressure, including age and body size depends on many factors. Infants and children than in adults with low to normal readings. The patients or small children may have serious lower normal blood pressure.
According to the American Heart Association guidelines, any reading above 120/80 is considered high blood pressure, high blood pressure before or earlier.
You can think of the heart and blood vessels (arteries and veins) as a system for the transmission of blood, just like your car pumps. Oil is pumping hard through the tube. The pressure has remained relatively stable throughout the pumping cycle, unless there is a pump failure or oil spill. Secondly, the oil pressure will drop.
The agency is similar, but the wall of the hose, which means that the space in the arteries can be larger or smaller. If the larger space, but effective in reducing the loss of fluid pressure. If the space smaller, the increase in pressure. Artery wall muscle layer, may enter into contracts, narrowing of the arteries, so that less space within the blood vessels.
In addition, you can relax the muscles and arteries so that more space. Control of these muscles by the autonomic nervous system, automatic system of the body, so that the time for adaptation, the institutional relationship between the changing world. The autonomic nervous system there are two ways to balance the other.
Sympathetic nervous system with epinephrine (adrenaline), to make the contract (sympathetic tone) muscle. Unlike that with this help is in the sympathetic trunk, which is a nervous group of nerves along the spine to run a. The parasympathetic nervous system uses to make acetylcholine in the vascular wall of muscle relaxation through the vagus nerve.
For example, when you get up, blood vessels has been reduced to a bit of a slight increase in blood pressure, so the trip up the hill of blood to the brain. If there are such changes, you may feel dizzy or fainting in the past.
If the cause of clinical symptoms of low blood pressure, the reason will be one of the three major categories. Or the pressure is not sufficient the heart pumps, the arterial wall is too expansive, or not enough fluid in the blood vessels (internal diameter = + = vessels within vascular) system.
The heart is a pump. If there is a problem with pump or electrical power can cause low blood pressure.
The heart valve so that blood flows in one direction. If a valve fails, you can spit blood back to reduce the amount of money would be outside the body. If the valve is narrowed (stenosis), and therefore the flow of blood may decrease. Both cases can lead to low blood pressure.
If the rate of heart beat, blood pressure may drop, because there is not enough time to fill each heart between beats (diastolic). If the heartbeat is too slow, there can be too much time spent in diastole, when blood does not flow.
If the heart muscle is damaged or irritated, can not have enough pumping force to maintain blood pressure. A heart attack (myocardial infarction), heart muscle may be sufficient to shock, to make the heart too weak to pump effectively.
Diuretics [eg, hydrochlorothiazide (Hydrodiuril), furosemide (furosemide)] is used to control the kidney, so that more of urine, lower blood pressure and intravascular volume. If the patient has lost too much water and become dehydrated, low blood pressure may result.
β-blockers and calcium channel blockers, there are two drugs commonly used to treat high blood pressure. They can lead to heart beat too slow, resulting in lowering of blood pressure. Heart disease, any drug should be monitored by medical staff to assess the body’s reaction to select the appropriate dose.
Drugs such as sildenafil and nitroglycerin in common (Viagra) may cause blood vessels to dilate and blood pressure.
The physiological changes of normal pregnancy increase the intravascular space, especially in the first pregnancy and lead to lower blood pressure. One of the complications of diabetes, nerve damage in vivo, including the autonomic nervous system.
That in diabetic patients with autonomic dysfunction, orthostatic hypotension may occur. Vascular able to adapt to rapid changes of direction.
If the pressure is low, the lack of blood flow causes the body’s organs, then these institutions begin to fail. This can lead to stroke in the supply of blood, heart attack, kidney failure and bowel ischemia (reduced, small intestine, colon). Shock and death is the end result of a long-term strain in the blood.

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