What Is A Blood Pressure Measurement
Each time your heart beats, it pumps blood into your arteries. A blood pressure measurement is a test that measures the force in your arteries as your heart pumps. Blood pressure is measured as two numbers:
- Systolic blood pressure measures pressure inside your arteries when the heart beats.
- Diastolic blood pressure measures the pressure inside the artery when the heart rests between beats.
High blood pressure, also known as hypertension, affects tens of millions of adults in the United States. It increases the risk of life-threatening conditions including heart attack and stroke. But high blood pressure rarely causes symptoms. A blood pressure measurement helps diagnose high blood pressure early, so it may be treated before it leads to serious complications.
Other names: blood pressure reading, blood pressure test, blood pressure screening, sphygmomanometry
What Constitutes High Blood Pressure
High blood pressure, also called hypertension, happens when the heart pumps blood against the artery walls at higher pressures than normal. It doesnt cause any symptoms, so the only way to know whether its high is to check it. But it isnt diagnosed from just one reading. You need at least two or more readings on two or more separate days before you can know whether you have high blood pressure. This is because your blood pressure changes from day to day and throughout each day, depending on what youre doing. It can increase temporarily from:
-
Caffeine
-
Stress or anxiety;
What Does High Blood Pressure Feel Like
High blood pressure often doesn’t have any symptoms, so you usually don’t feel it.
Hypertension is usually diagnosed by a health care professional during a routine checkup. The average person should get a blood pressure reading at least once a year. As a cardiologist, I think its important for everyone to know their numbers. That means knowing what your blood pressure is. And it also means knowing your blood sugar level, cholesterol and body mass index. When you know your numbers, you can work with your doctor to make a plan to reduce any risks.
Blood pressure is even more important to pay attention to, though, if you have a close relative with hypertension or other risk factors. And know that if your blood pressure is extremely high, you may have unusually severe headaches, chest pain, difficulty breathing or get easily worn out by workouts. If you have any of these symptoms, see your doctor right away.
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What Is High Blood Pressure
High blood pressure, also called hypertension, is blood pressure that is higher than normal. Your blood pressure changes throughout the day based on your activities. Having blood pressure measures consistently above normal may result in a diagnosis of high blood pressure .
The higher your blood pressure levels, the more risk you have for other health problems, such as heart disease, heart attack, and stroke.
Your health care team can diagnose high blood pressure and make treatment decisions by reviewing your systolic and diastolic blood pressure levels and comparing them to levels found in certain guidelines.
The guidelines used to diagnose high blood pressure may differ from health care professional to health care professional:
- Some health care professionals diagnose patients with high blood pressure if their blood pressure is consistently 140/90 mm Hg or higher.2 This limit is based on a guideline released in 2003, as seen in the table below.
- Other health care professionals diagnose patients with high blood pressure if their blood pressure is consistently 130/80 mm Hg or higher.1 This limit is based on a guideline released in 2017, as seen in the table below.
| systolic: 130 mm Hg or higherdiastolic: 80 mm Hg or higher |
If you are diagnosed with high blood pressure, talk with your health care team about your blood pressure levels and how these levels affect your treatment plan.
Measuring Blood Pressure With A Sphygmomanometer
A sphygmomanometer has three parts:
- a cuff that can be inflated with air,
- a pressure meter for measuring air pressure in the cuff, and
- a stethoscope for listening to the sound the blood makes as it flows through the brachial artery .
The scale of the pressure meter ranges from 0 to 300 mmHg. The pressure meter has a rubber pump on it for inflating the cuff and a button for letting the air out.
To measure blood pressure, the cuff is placed around the bare and stretched out upper arm, and inflated until no blood can flow through the brachial artery. Then the air is slowly let out of the cuff.
As soon as the air pressure in the cuff falls below the systolic blood pressure in the brachial artery, blood will start to flow through the arm once again. This creates a pounding sound when the arteries close again and the walls of the vessels hit each other after a heart beat. The sound can be heard by placing the stethoscope close to the elbow. Right when you start to hear this pounding for the first time you can read your systolic blood pressure off the pressure meter.
The pounding sound stops when the air pressure in the cuff falls below the diastolic blood pressure in the brachial artery. Then the blood vessels remain open. Right when the pounding stops, you can read the diastolic blood pressure off the pressure meter.
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How Can I Treat High Blood Pressure
High blood pressure is very treatable. Treatment includes medications and changes you can make in your everyday life. Changes you can make to lower your blood pressure include:
-
Eating less salt
In some cases, making these changes may be enough to lower your blood pressure. If your blood pressure remains high, you may need to start taking medication to bring it down.;
Preventing High Blood Pressure
To keep your blood pressure in the normal range, your daily habits are key. These things help:
Donât smoke. Among the many health problems that smoking causes, it raises your blood pressure.
Make physical activity a habit. Most experts recommend at least 30 minutes of moderate-intensity physical activity five or more times a week. Or you could do a harder activity for a shorter period of time per session.
Eat right. Read food labels to see how much sodium is in a serving. Check with your doctor to find out what your daily limit should be. Include a lot of vegetables and fruits, along with whatever else you choose to put on your plate.
Stick to a healthy weight. Extra pounds raise your blood pressure. If youâre not sure what a healthy weight would be for you, ask your doctor.
Get enough sleep. For most adults, thatâs 7-8 hours of sleep per night, on a regular basis.
If you drink alcohol, limit it to no more than one drink a day if youâre a woman and up to two drinks a day if youâre a man.
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How Often Should You Measure Your Blood Pressure
When and how often you take your readings will depend on your blood pressure. Speak to your doctor or nurse about whats suitable for you.;
It can be useful to monitor your blood pressure closely to begin with, then less often but at regular intervals.
When you first start using your home monitor
When you first start using a home monitor, measure your blood pressure in the morning and evening, every day for a week.
Take three readings in the morning, one to two minutes apart, and the same again in the evening, and record all the readings. Take an average of the readings, but discard the first one if its much higher than the others. To take an average simply add the two readings together and divide by two. Divide by three if you use all three readings.
Ignore the first days readings altogether, because they might not be accurate as youre not familiar with your monitor yet.
At the end of the week you will have a useful picture of what your blood pressure is normally like.
Your doctor might ask you to keep a record like this when they first think you might have high blood pressure and would like to know more before making a diagnosis.
After the first week
Once you have a record of your blood pressure over a week, you can take readings less often once every one to two weeks perhaps. Your doctor or nurse can talk to you about this, theres no need to measure it too often.
S To Better Heart Health
How do you get started self-measuring your blood pressure? Lets break it down to a few easy steps.;
Start by discussing your plan to self-monitor your blood pressure with your healthcare team and set your goal for a healthy range of readings.; Ask for help in selecting a home blood pressure monitor, including one with the cuff size thats right for you.;
Your insurance company may cover the monitor at low or no cost. Your healthcare team can help you find out.
When checking your blood pressure, properly preparing and positioning yourself are important for getting accurate readings. Before you get started, empty your bladder, turn off your phone and TV, and rest quietly in a chair for five minutes.
Get in the habit of taking your readings at the same time each day, and keep a log of your readings to share with your healthcare team. Ask if they have any recommendations for you. Gradually adjust your exercise, diet , and other factors your healthcare team may recommend.;;
Finally, remember to take any blood pressure medications as prescribed by your healthcare team.;
Soon youll understand the ups and downs of your blood pressure, and youll be in control!
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What Does Blood Pressure Tell You
Blood pressure measures the force of your blood pushing against the walls of your arteries, or blood vessels. Your heart pumps blood into your arteries. And the arteries carry that blood to the rest of your body.
The top number of your blood pressure reading tells you the force of the blood against artery walls when your heart beats. It is called systolic pressure. The bottom number tells you what your blood pressure is when your heart is at rest between heartbeats. It is called diastolic pressure.
Where Can I Learn How To Take My Blood Pressure Myself
In Germany and other countries, people with high blood pressure can attend patient education courses that teach a number of things, including how to measure your blood pressure. As part of specialized disease management programs for people who have narrow coronary arteries , statutory health insurers offer additional healthcare services. These include patient education about high blood pressure. Some doctors practices don’t offer these courses, though.
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High Blood Pressure Chart
The chart below shows measures for normal and high blood pressure, according to the American Heart Association .
Doctors measure blood pressure in millimeters of mercury .
Systolic pressure measures the pressure in the arteries as the heart contracts and is the top number on a blood pressure reading. Diastolic, which is the lower number, represents the blood pressure when the heart is resting between beats.
| Systolic |
- congenital conditions, such as Cushings syndrome, acromegaly, or pheochromocytoma
Sometimes, there is no apparent cause. In this case, a doctor will diagnose primary hypertension.
Consuming a high fat diet, carrying excess weight, drinking a lot of alcohol, smoking tobacco, and the use of some medications also increase the risk.
Treatment will depend on several factors, including:
- how high the blood pressure is
- the risk of cardiovascular disease or a stroke
The doctor will recommend different treatments as blood pressure increases. For slightly high blood pressure, they may suggest making lifestyle changes and monitoring the blood pressure.
If blood pressure is high, they will recommend medication. The options may change over time, according to how severe the hypertension is and whether complications arise, such as kidney disease. Some people may need a combination of several different medications.
Diminish Your Sodium Intake
Its a great guilty party in raising circulatory strain. The American Heart Association suggests that individuals with hypertension hold it under 1,500 milligrams every day. Check your food marks to perceive the amount youre getting. On the off chance that you cut back bit by bit, youre more averse to see the difference. One approach to scaling back is to set up your food at home. 75% of your sodium consumption comes from eating out and bundled food varieties. Utilize more flavors for flavor rather than salt. Eating more potassium helps move sodium out of your body. A little exertion can bring circulatory strain down as much as two to eight focuses.
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Pounding Neck Or Ears
This pounding on your neck and ears is often referred to as tinnitus. It is the annoying sensation where you can hear a sound that is not physically present. Hypertension and other factors that may increase your blood pressure like alcohol, caffeine, and stress may make tinnitus more evident and noticeable.
Tips For Checking Your Own Blood Pressure
There are certain factors that can cause blood pressure to temporarily rise. For example, blood pressure normally rises as a result of:
- Stress
- Caffeine
- Certain medicines
Try to avoid as many of these factors as you can when taking your blood pressure. Also, try to measure your blood pressure at about the same time each day. Your doctor may want you to check your blood pressure several times during the day to see if it fluctuates.
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Risk Factors For High Blood Pressure
In most cases, high Blood Pressure is often associated with several risk factors, such as:
- Age Men above 64 and women about 65 are more likely to develop high blood pressure.
- Race People of African descent are more likely to have high blood pressure at an
- early stage in their lives compared to Caucasian people.
- Genetics High blood pressure problems can be inherited
- Having elevated stress levels frequently
- Obesity or being overweight
- Excessive sodium quantities in your diet
- Too little potassium in your diet
- Excessive use of tobacco
- Not being physically active
- Certain health conditions, such as diabetes, sleep apnea, and chronic kidney disease
- Pregnancy, in rare cases
New Aha Recommendations For Blood Pressure Measurement
LIZ SMITH
Am Fam Physician.;2005;Oct;1;72:1391-1398.
Diagnosis and treatment of hypertension depend on accurate measurement of auscultatory blood pressure. The lowering of target blood pressure for patients with diabetes or renal disease has made detection of small differences more important. However, blood pressure reading is one of the most inaccurately performed measurements in clinical medicine.
True blood pressure is defined as the average level over a prolonged duration. Thus, in-clinic blood pressure measurement, which generally makes no allowance for beat-to-beat variability, can be a poor estimation and may fail to catch high blood pressure that occurs only outside the clinic setting. In addition, faulty methods and the white coat effect may lead to misdiagnosis of hypertension in normotensive patients.
To increase accuracy of clinic readings, and in recognition of major changes over the past 10 years , the American Heart Association has published a new set of recommendations for the measurement of blood pressure. The AHA scientific statement, written by Pickering and colleagues, was first published in the January 2005 issue of Hypertension and also appears in the February 8, 2005, issue ofCirculation. It can be accessed online at. A summary of the AHA scientific statement follows.
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How Is Blood Pressure Measured
It’s important to measure blood pressure more than once because it fluctuates over the course of the day. It can also change due to things like physical exertion, stress, pain, or extreme heat or cold. But this kind of increase in blood pressure is only temporary and it soon returns to normal.
So, if blood pressure is measured just once and found to be high, it doesn’t necessarily mean that it’s always too high. A blood pressure reading taken at the doctors office can also be misleading: Going to the doctor makes some people so nervous that their blood pressure goes up.
So to get reliable readings, blood pressure is measured on several different days and while you are resting. This means sitting down and relaxing on a chair, and waiting about three minutes before taking a measurement so that your circulatory system comes to rest. The upper arm that is being used for the measurement should rest on a table, at about the same height as the heart, while the reading is being done.
You can measure your blood pressure on your own using a digital blood pressure monitor for automated readings or an instrument called a sphygmomanometer for manual readings.
How Often Should I Monitor My Blood Pressure
High blood pressure doesnt always cause symptoms, so its important to get your blood pressure checked. Recent guidelines recommend that all adults age 40 and older check their blood pressure at least once per year. Younger adults can check it every three to five years, or every year if they are at higher risk.;;
If you already have high blood pressure, you will need to check your blood pressure more frequently especially when you are starting or adjusting medications. Once your blood pressure stabilizes with treatment, you usually wont need to check it as often. Regular monitoring is still important, though, because your blood pressure can change over time, even when youre taking medications.
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