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Nornmal Blood Pressure

What is blood pressure?


Normal blood pressure is vital to life. Without the pressure that forces our blood to flow around the circulatory system; no oxygen or nutrients would be supplied to the tissues and organs through our arteries. However, blood pressure may become dangerously high, and it may also be too low. In this article, we will discuss what it is; how it is measured and what measurements are for our health. Blood pressure is what allows oxygen and nutrients to move through our circulation systems. it is force that moves blood through our circulation system. It’s an important force because oxygen and nutrients would not be pushed around our circulation system to nourish blood pressure-free tissues and organs. it’s also vital because it delivers immunity to white blood cells and antibodies; as well as hormones such as insulin. Just as important as providing oxygen and nutrients, the fresh blood that comes in is able to pick up the metabolic toxic waste products; including the carbon dioxide that we exhale with every breath and the toxins that we clear through our liver and kidneys. Blood itself has a number of other properties, including its temperature. It also carries one of our defenses against tissue damage, clotting platelets that prevent blood loss after injury.

But what exactly causes blood to exert pressure in our arteries?


Part of the answer is simple-the heart causes blood pressure by forcing out the blood when it contracts with every heartbeat. it’s, however, can’t be created solely by the pumping heart.
Function
Our circulation is similar to a very sophisticated form of plumbing-blood has ‘ flow ‘ and arteries are ‘ pipes. ‘ The basic law of physics gives rise to our blood flow, and this law also applies to the garden hose pipe.
Blood is flowing through our body because of a difference in pressure.
Our blood pressure is very high at the start of its journey from our heart – when it enters the aorta – and it’s low at the end of it’s journey along progressively smaller branches of arteries. The difference in pressure is what causes blood to flow around our bodies.
Arteries have a similar effect on blood pressure to the physical properties of a garden hose pipe affecting water pressure. Constriction of the pipe increases the pressure at the constriction point.
For example, without the elastic nature of the artery walls, it’s would fall faster as it is pumped out of the heart.
While the heart creates the maximum pressure, the properties of the arteries are just as important to maintain and allow blood to flow throughout the body.
Artery condition affects blood pressure and flow, and artery narrowing will eventually completely block supply, leading to hazardous conditions like stroke and heart attack .

Measurement


The device used to measure blood pressure is a sphygmomanometer, consisting of a rubber band – the manual or electronic pump inflated belt.
Once the cuff has been inflated enough to stop the pulse, it is read either electronically or on an analog dial.
The reading is expressed in terms of the pressure it takes to move mercury around the tube against gravity. This is the reason for the pressure being measured using a unit of millimeters of mercury abbreviated to mm Hg.

The stethoscope identifies the precise point at which the pulse sound returns and the pressure of the cuff is slowly released. Using a stethoscope, the person measuring the it is able to listen to two specific points.

Readings consist of two figures-first systolic pressure and second diastolic pressure. For example, the reading is 140 over 90 mm Hg.
The systolic pressure is the higher figure caused by the contraction of the heart; while the diastolic number is the lower pressure in the arteries during the brief period of rest between the heartbeat.
Ranges
The National Institutes of Health claim that normal blood pressure is below 120 mm Hg systolic and 80 mm Hg diastolic.
The guidelines state that for blood pressures above a figure of 120/80 mm Hg; every rise of 15/10 mm Hg doubles the risk of cardiovascular disease.
They also removed the “prehypertension” category between 120-135/80-88 mm Hg. A blood pressure reading of 138/89 mm Hg now qualifies as stage II hypertension and not stage I, as it used to be.

This category now forms two separate ranges:


Elevated blood pressure, from 120-130/less than 82 mm Hg.
Stage I hypertension, from 130-138/80-88 mm Hg.
The 24 hours pharmacy also recommends in these new guidelines that physicians should only prescribe medicine in cases of a previous heart attack or stroke; or in the presence of risk factors for such conditions, such as age, diabetes mellitus, or chronic kidney disease.

The guidelines for doctors list the following measures patients can take to help keep a healthy blood pressure:

Keep a healthy body weight.
Eat a diet rich in fruit, vegetables and low fat dairy products.
Cut down on a diet of sodium or salt.
Take regular aerobic exercise, such as brisk walking, for at least 30-40 minutes a day, most days of the week.
Moderate alcohol intake. Men should drink less than two alcoholic drinks a day for men. Women and men of lower body weight should consume a maximum of one drink of alcohol per day.
This category now forms two separate ranges:
Eelevated blood pressure, from 120-130/less than 82 mm Hg
Stage I hypertension, from 130-138/80-88 mm Hg

Posted on 27-12-2019
Posted By : Admin


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