Blood pressure

High Blood Pressure Overview

2010-11-05T15:38:00.000-07:00

High Blood Pressure Overview

The heart pumps blood into the arteries with enough force to push blood to the far reaches of each organ from the top of the head to the bottom of the feet. Blood pressure can be defined as the pressure of blood on the walls of the arteries as it circulates through the body. Blood pressure is highest as its leaves the heart through the aorta and gradually decreases as it enters smaller and smaller blood vessels (arteries, arterioles, and capillaries). Blood returns in the veins leading to the heart, aided by gravity and muscle contraction.

Hypertension is the medical term for high blood pressure. It is known as the "silent killer" since it has no initial symptoms but can lead to long-term disease and complications..

Many people have high blood pressure and don't know it.

Important complications of uncontrolled or poorly treated high blood pressure include heart attack, congestive heart failure, stroke, kidney failure, peripheral artery disease, and aortic aneurysms (weakening of the wall of the aorta, leading to widening or ballooning of the aorta).

Public awareness of these dangers has increased. High blood pressure has become the second most common reason for medical office visits in the United States.

How is blood pressure measured?

Blood pressure is measured with a blood pressure cuff and recorded as two numbers, for example, 120/80 mm Hg (millimeters of mercury). Blood pressure measurements are usually taken at the upper arm over the brachial artery.

The top, larger number is called the systolic pressure. This measures the pressure generated when the heart contracts (pumps). It reflects the pressure of the blood against arterial walls.

The bottom, smaller number is called the diastolic pressure. This reflects the pressure in the arteries while the heart is filling and resting between heartbeats.

The American Heart Association has recommended guidelines to define normal and high blood pressure.

Normal blood pressure less than 120/80
Pre-hypertension 120-139/ 80-89
High blood pressure (stage 1) 140-159/90-99
High blood pressure (stage 2) higher than 160/100

As many as 60 million Americans have high blood pressure.

Uncontrolled high blood pressure may be responsible for many cases of death and disability resulting from heart attack, stroke, and kidney failure.
According to research studies, the risk of dying of a heart attack is directly linked to high blood pressure, particularly systolic hypertension. The higher your blood pressure, the higher the risk. Maintaining lifelong control of hypertension decreases the future risk of complications such as heart attack and stroke.

High Blood Pressure (Hypertension)

2010-11-05T15:36:00.000-07:00

High Blood Pressure
(Hypertension)

What is high blood pressure?

High blood pressure (HBP) or hypertension means high pressure (tension) in the arteries. Arteries are vessels that carry blood from the pumping heart to all the tissues and organs of the body. High blood pressure does not mean excessive emotional tension, although emotional tension and stress can temporarily increase blood pressure. Normal blood pressure is below 120/80; blood pressure between 120/80 and 139/89 is called "pre-hypertension", and a blood pressure of 140/90 or above is considered high.

The top number, the systolic blood pressure, corresponds to the pressure in the arteries as the heart contracts and pumps blood forward into the arteries. The bottom number, the diastolic pressure, represents the pressure in the arteries as the heart relaxes after the contraction. The diastolic pressure reflects the lowest pressure to which the arteries are exposed.

An elevation of the systolic and/or diastolic blood pressure increases the risk of developing heart (cardiac) diseasekidney (renal) disease, hardening of the arteries (atherosclerosis or arteriosclerosis), eye damage, and stroke (brain damage). These complications of hypertension are often referred to as end-organ damage because damage to these organs is the end result of chronic (long duration) high blood pressure. For that reason, the diagnosis of high blood pressure is important so efforts can be made to normalize blood pressure and prevent complications. was previously thought that rises in diastolic blood pressure were a more important risk factor than systolic elevations, but it is now known that in people 50 years or older systolic hypertension represents a greater risk.

The American Heart Association estimates high blood pressure affects approximately one in three adults in the United States - 73 million people. High blood pressure is also estimated to affect about two million American teens and children, and the Journal of the American Medical Association reports that many are under-diagnosed. Hypertension is clearly a major public health problem.

High Blood Pressure: Things You Can Do to Help Lower Yours

2010-11-05T15:33:00.000-07:00

What is high blood pressure?

Arteries are like hoses that carry blood from your heart to the rest of your body. If you put a crimp in a hose, pressure builds up inside it. High blood pressure (also called hypertension) occurs when your blood moves through your arteries at a higher pressure than normal.

What do the numbers mean?

Blood pressure is really two measurements, separated by a slash when written, such as 120/80. You may also hear someone say a blood pressure is "120 over 80."

The first number is the systolic blood pressure. This is the peak blood pressure when your heart is squeezing blood out. The second number is the diastolic blood pressure. It's the pressure when your heart is filling with blood--relaxing between beats.

A normal blood pressure is less than 120/80. High blood pressure is 140/90 or higher. If your blood pressure is between 120/80 and 140/90, you have what is called "prehypertension," which means that if you don’t take important steps, your blood pressure can turn into high blood pressure.

How is high blood pressure diagnosed?

Blood pressure is measured by placing a blood pressure cuff around your arm, inflating the cuff and listening for the flow of blood. Your doctor will measure your blood pressure at more than one visit to see if you have high blood pressure.

How often should I have my blood pressure checked?

After age 18, have your blood pressure checked at least once every 2 years. Do it more often if you have had high blood pressure in the past.

What problems does high blood pressure cause?

Both high blood pressure and prehypertension damage your blood vessels. This in turn raises your risk of stroke, kidney failure, heart disease and heart attack.

Does it have any symptoms?

Not usually. This is why it's so important to have your blood pressure checked regularly.

How is it treated?

Treatment begins with changes you can make to your lifestyle to help lower your blood pressure and reduce your risk of heart disease (see the box below). If these changes don't work, you may also need to take medicine.

Even if you need to take medicine, making some changes in your lifestyle can help reduce the amount of medicine you must take.

Lifestyle changes

Don't smoke cigarettes or use any tobacco product.
Lose weight if you're overweight.
Exercise regularly.
Eat a healthy diet that includes lots of fruits and vegetables and is low in fat.
Limit your sodium, alcohol and caffeine intake.
Try relaxation techniques or biofeedback.

How do tobacco products affect blood pressure?

The nicotine in cigarettes and other tobacco products causes your blood vessels to constrict and your heart to beat faster, which temporarily raises your blood pressure. If you quit smoking or using other tobacco products, you can significantly lower your risk of heart disease and heart attack, as well as help lower your blood pressure.

What about losing weight and exercising?

If you're overweight, losing weight usually helps lower blood pressure. Regular exercise is a good way to lose weight. It also seems to lower high blood pressure by itself.

Is sodium really off limits?

Not everyone is affected by sodium, but sodium can increase blood pressure in some people. Most Americans with healthy blood pressure should limit the sodium in their diet to 2,300 mg per day. African Americans, older Americans and people with high blood pressure should limit the sodium in their diet to 1,500 mg per day. Your doctor may tell you to limit your sodium even more.

Don't add salt to your food. Check food labels for sodium. While some foods obviously have a lot of sodium, such as potato chips, you may not realize how much sodium is in food like bread, canned vegetables, soups and cheese. Also be aware that some medicines contain sodium.

Do I need to quit drinking alcohol altogether?

In some people, alcohol causes blood pressure to rise quite a lot. In other people, it doesn't. If you drink alcohol, limit it to no more than 1 drink per day for women or 2 drinks per day for men. One drink is a can of beer, a glass of wine (4-5 oz.), or 1 shot (jigger) of liquor. If your blood pressure increases with alcohol, it's best not to drink any alcohol.

Does stress affect my blood pressure?

Stress may affect blood pressure. To help combat the effects of stress, try relaxation techniques or biofeedback. These things work best when used at least once a day. Ask your family doctor for advice.

What about medicine?

Many different types of medicine can be used to treat high blood pressure (see the box below). These are called antihypertensive medicines.

The goal of treatment is to reduce your blood pressure to normal levels with medicine that's easy to take and has few, if any, side effects. This goal can almost always be met.

If your blood pressure can only be controlled with medicine, you'll need to take the medicine for the rest of your life. You may need to take more than one medicine to help control your blood pressure. Don't stop taking the medicine without talking with your family doctor or you may increase your risk of having a stroke or heart attack.

Types of antihypertensive drugs

Diuretics: These drugs help your body get rid of extra sodium and fluid so that your blood vessels don't have to hold so much fluid.
Beta-blockers: These drugs block the effects of adrenaline.
Alpha-blockers: These drugs help your blood vessels stay open.
ACE inhibitors: These drugs prevent your blood vessels from constricting by reducing how much angiotensin II your body makes. Angiotensin II is a chemical that constricts blood vessels (makes them more narrow).
ARBs: These drugs work by blocking the effect of angiotensin II on cells
Calcium channel blockers: These drugs help prevent your blood vessels from constricting by blocking calcium from entering your cells.
Combinations: These drugs combine two medicines, like an ACE inhibitor or a beta-blocker plus a diuretic.
What are the possible side effects of medicine?
Different drugs have different side effects for different people. Side effects of antihypertensive drugs can include feeling dizzy when you stand up after lying down or sitting, lowered levels of potassium in your blood, problems sleeping, drowsiness, dry mouth, headaches, bloating, constipation and depression. In men, some antihypertensive drugs can cause problems with having an erection.

Talk to your family doctor about any changes you notice. If one medicine doesn't work for you or causes side effects, you have other options. Let your doctor help find the right medicine for you.

High Blood Pressure

2010-11-05T15:31:00.001-07:00

High Blood Pressure

Also called: HBP, HTN, Hypertension

Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps out blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is the diastolic pressure.

Your blood pressure reading uses these two numbers, the systolic and diastolic pressures. Usually they are written one above or before the other. A reading of

120/80 or lower is normal blood pressure
140/90 or higher is high blood pressure
120 and 139 for the top number, or between 80 and 89 for the bottom number is prehypertension

High blood pressure usually has no symptoms, but it can cause serious problems such as stroke, heart failure, heart attack and kidney failure. You can control high blood pressure through healthy lifestyle habits and taking medicines, if needed.

NIH: National Heart, Lung, and Blood Institute

What Is High Blood Pressure?

2010-11-05T15:27:00.000-07:00

High blood pressure (HBP) is a serious condition that can lead to coronary heart disease, heart failure, stroke, kidney failure,"Blood pressure" is the force of blood pushing against the walls of the arteries as the heart pumps out blood. If this pressure rises and stays high over time, it can damage the body in many ways.

Overview

About 1 in 3 adults in the United States has HBP. HBP itself usually has no symptoms. You can have it for years without knowing it. During this time, though, it can damage the heart, blood vessels, kidneys, and other parts of your body.

This is why knowing your blood pressure numbers is important, even when you're feeling fine. If your blood pressure is normal, you can work with your health care team to keep it that way. If your blood pressure is too high, you need treatment to prevent damage to your body's organs.

Blood Pressure Numbers

Blood pressure numbers include systolic (sis-TOL-ik) and diastolic (di-a-STOL-ik) pressures. Systolic blood pressure is the pressure when the heart beats while pumping blood. Diastolic blood pressure is the pressure when the heart is at rest between beats.

You will most often see blood pressure numbers written with the systolic number above or before the diastolic, such as 120/80 mmHg. (The mmHg is millimeters of mercury—the units used to measure blood pressure.)

The table below shows normal numbers for adults. It also shows which numbers put you at greater risk for health problems. Blood pressure tends to go up and down, even in people who have normal blood pressure. If your numbers stay above normal most of the time, you're at risk.

Categories for Blood Pressure Levels in Adults (in mmHg, or millimeters of mercury)

Category	Systolic (top number)		Diastolic (bottom number)
Normal	Less than 120	And	Less than 80
Prehypertension	120–139	Or	80–89
High blood pressure
Stage 1	140–159	Or	90–99
Stage 2	160 or higher	Or	100 or higher

The ranges in the table apply to most adults (aged 18 and older) who don't have short-term serious illnesses.

All levels above 120/80 mmHg raise your risk, and the risk grows as blood pressure levels rise. "Prehypertension" means you're likely to end up with HBP, unless you take steps to prevent it.

If you're being treated for HBP and have repeat readings in the normal range, your blood pressure is under control. However, you still have the condition. You should see your doctor and stay on treatment to keep you blood pressure under control.

Your systolic and diastolic numbers may not be in the same blood pressure category. In this case, the more severe category is the one you're in. For example, if your systolic number is 160 and your diastolic number is 80, you have stage 2 HBP. If your systolic number is 120 and your diastolic number is 95, you have stage 1 HBP.

If you have diabetes or chronic kidney disease, HBP is defined as 130/80 mmHg or higher. HBP numbers also differ for children and teens. (For more information, see

Outlook

Blood pressure tends to rise with age. Following a healthy lifestyle helps some people delay or prevent this rise in blood pressure.
People who have HBP can take steps to control it and reduce their risks for related health problems. Key steps include following a healthy lifestyle, having ongoing medical care, and following the treatment plan that your doctor prescribes.

Blood pressure

2010-11-05T15:26:00.000-07:00

(BP) is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. During each heartbeat, BP varies between a maximum (systolic) and a minimum (diastolic) pressure. The mean BP, due to pumping by the heart and resistance to flow in blood vessels, decreases as the circulating blood moves away from the heart through arteries. Blood pressure drops most rapidly along the small arteries and arterioles, and continues to decrease as the blood moves through the capillaries and back to the heart through veins.[2] Gravity, valves in veins, and pumping from contraction of skeletal muscles, are some other influences on BP at various places in the body.

The term blood pressure usually refers to the pressure measured at a person's upper arm. It is measured on the inside of an elbow at thebrachial artery, which is the upper arm's major blood vessel that carries blood away from the heart. A person's BP is usually expressed in terms of the systolic pressure over diastolic pressure (mmHg), for example 120/80.

HIGH BLOOD PRESSURE

2010-11-05T15:15:00.001-07:00

High blood pressure is a condition that effects millions worldwide. It may often be a silent killer. You may have high blood pressure and not even know it.
For me this is a very personal issue. This condition is inherit in my family. I have lived with high blood pressure, for many years now, and not even known it.
In conclusion, i just hope that one day, a cure for this deadly condition, may in fact be discovered!

Blood pressure

High Blood Pressure Overview

High Blood Pressure Overview

High Blood Pressure (Hypertension)

High Blood Pressure(Hypertension)

What is high blood pressure?

High Blood Pressure: Things You Can Do to Help Lower Yours

What is high blood pressure?

What do the numbers mean?

How is high blood pressure diagnosed?

How often should I have my blood pressure checked?

What problems does high blood pressure cause?

Does it have any symptoms?

How is it treated?

Lifestyle changes

How do tobacco products affect blood pressure?

What about losing weight and exercising?

Is sodium really off limits?

Do I need to quit drinking alcohol altogether?

Does stress affect my blood pressure?

What about medicine?

Types of antihypertensive drugs

What are the possible side effects of medicine?

High Blood Pressure

High Blood Pressure

What Is High Blood Pressure?

Overview

Blood Pressure Numbers

Categories for Blood Pressure Levels in Adults (in mmHg, or millimeters of mercury)

Outlook

Blood pressure

HIGH BLOOD PRESSURE

High Blood Pressure
(Hypertension)