What is blood pressure?
![Blood pressure is the pressure that blood exerts on your arteries. Signs of high blood pressure include flushing, dizziness and blood spots in the eyes.](https://images.medicinenet.com/images/article/main_image/liposuction-techniques.jpg?resize=650px:*&output-quality=75)
官网地址bwinis a measurement of the force of your blood as it pushes against artery walls. This force moves blood throughout your body. Every time you visit a doctor, you get a blood pressure reading to make sure your blood pressure numbers aren’t too high or too low. If they get above a certain level,heartand blood problems can arise.
A typical blood pressure reading involves a top number and a bottom number. The top number refers to systolic blood pressure, or the measure of blood pressure when your heart contracts. The bottom number refers to diastolic blood pressure, or the measure of blood pressure when your heart expands.
But how do you know if your blood pressure is too high? Learn about the signs and symptoms and ways to treathigh blood pressureif you have it.
What is high blood pressure?
High blood pressureis defined as blood pressure at or above 130/80 millimeters of mercury (mm Hg) {American College of Cardiology: “2017 Guideline forHigh Blood Pressurein Adults.”}. Nearly half of adults living in the United States havehigh blood pressure(also calledhypertension) or currently take medication to treathypertension{Centers for Disease Control andPrevention: “Facts AboutHypertension.”}. If left untreated, hypertension contributes to medical conditions likeheart diseaseandstroke, which claim millions of lives each year.
Signs of high blood pressure
Many adults have high blood pressure, but they aren’t aware of it. That’s why medical experts call hypertension a “silent condition.” The only way to know for sure if you have high blood pressure is to measure it regularly. You can do this at home or during a visit to your doctor’s office.
Although not directly caused by hypertension, there are a few symptoms that can indirectly result from high blood pressure numbers. These include:
Blood spots in the eyes
Having red spots in your eyes is most commonly seen in individuals with high blood pressure ordiabetes.Diabetesand high blood pressure do not cause blood spots, however. An ophthalmologist (eye doctor) can best determine if untreated hypertension is causingoptic nervedamage, leading to blood spots in the eyes.
Facial flushing
Lots of internal and external factors can cause facial flushing, like eating spicy foods, drinking hotdrinks, wind,stress, hormone fluctuation, and skincare products. Your face canflushwhen you have higher than normal blood pressure, but hypertension isn’t causing facial flushing.
Early warning signs of astrokeinclude sudden onset ofdizziness、失去平衡,和麻烦walking. High blood pressure is the top risk factor forstroke, so it’s possible for high blood pressure and dizziness to be related. Dizziness is also a common side effect of some blood pressure medications.
Types of high blood pressure
There are two types of high blood pressure. Which type you have depends on your blood pressure range.
- Stage 1:Systolic reading of 130–139 mm Hg or a diastolic reading of 80–89 mm Hg
- Stage 2:Systolic reading of 140 mm Hg or higher, or a diastolic reading of 90 mm Hg or higher
Causes of high blood pressure
Genetics and age both contribute to your likelihood of having high blood pressure. If anyone in your family has a history of high blood pressure, you might face a higher risk of having high blood pressure. Middle-aged and older adults face a higher risk too.
Other risk factors for high blood pressure include:
High blood pressure is also more common in African Americans, women who takeoral contraceptives, people who drink a lot ofalcohol, and individuals who eat a high sodiumdiet.
When to see a doctor for high blood pressure
Since the majority of individuals living with hypertension don’t experience symptoms, it’s likely you’ll find out about your high blood pressure numbers during a doctor’s appointment. After being diagnosed with hypertension, you should continue to see your doctor, especially if you can’t control your blood pressure with prescribed medication or recommended lifestyle changes.
You’re experiencing a hypertensive crisis
You should also see or contact your doctor if you experience a related high blood pressure event called a hypertensive crisis. There are two main types of hypertensive crises:
Hypertensive emergency
A hypertensive emergency is a rare medical emergency where your blood pressure is 180/120 mm Hg or higher and you are experiencing symptoms of target organ damage. If this happens to you, call emergency medical services right away.
Symptoms of target organ damage include:
- Chest pain
- Shortness of breath
- Numbness/weakness
- Change in vision
- Back pain
- Difficulty speaking
Hypertensive urgency
If you’re experiencing elevated blood pressure of 180/120 mm Hg or higher but are not experiencing any of the above symptoms, this is called hypertensive urgency. Wait five minutes and take your blood pressure a second time. If it is just as high, call your doctor’s office. Your doctor might want to adjust your medications. Hypertensive urgency does not usually result in hospitalization.
Tests for high blood pressure
When you have a doctor’s appointment, a nurse, medical assistant, or doctor typically checks your blood pressure. They routinely check blood pressure because there aren’tsymptoms of high blood pressure. The only way to catch it is to test it.
血压官网地址bwin机,正式称为sphygmomanometer, is used to test for high blood pressure. The blood pressure cuff fits around your arm. Doctors or nurses might use a manual blood pressure cuff and a stethoscope to measure your blood pressure. At home, you can use an electronic blood pressure monitor. It only takes a minute or so to do the test.
When measuring blood pressure, you’ll observe two numbers:
- Systolic: top number indicating pressure inside the artery when the heart is contracting
- Diastolic: bottom number indicating the pressure of blood inside the arteries when the heart is filling
You have high blood pressure if you have a systolic reading (top number) of 140 mm Hg or higher and a diastolic reading (bottom number) of 90 mm Hg or higher. In this case, the nurse or doctor might wait a few minutes and check your blood pressure again. If it’s still high, you might be asked to monitor your blood pressure at home.
High blood pressure can be a sign of another medical condition. Untreated high blood pressure can cause organ damage. To assess your health properly, a doctor might also order a urine test, blood tests, or anelectrocardiogram(EKG) to check your heart health.
Treatment for high blood pressure
Before prescribing medication, doctors usually suggest lifestyle changes that can help you lower your blood pressure. Changes might include:
- Exercising regularly
- Following a heart-healthydietthat’s low in salt
- Losing weight or maintaining a healthy weight
- Managingstress
- Quittingsmoking
- Limiting alcohol consumption
For many, especially those with stage 1 hypertension, lifestyle changes alone can lower someone’s blood pressure into the normal range.
If lifestyle changes don’t lower your blood pressure, your doctor might suggest medications. Medications are most often recommended for individuals with stage 2 hypertension or individuals with stage 1 hypertension who have previously had aheart attackorstroke.
![](https://images.medicinenet.com/images/quiz/salt/salt-s1.jpg)
QUESTION
Salt and sodium are the same.See AnswerHealth Solutions从我们的赞助商
American College of Cardiology: "2017 Guideline for High Blood Pressure in Adults."
American Heart Association: "Changes You Can Make to Manage High Blood Pressure."
American Heart Association: "Hypertensive Crisis: When You Should Call 911 for High Blood Pressure."
American Heart Association: "Understanding Blood Pressure Readings."
American Heart Association: "What are the Symptoms of High Blood Pressure?"
Cardiology Today: "Hypertension: Screening Overview."
Centers for Disease Control and Prevention: "Facts About Hypertension."
Harvard Health Publishing: "Reading the new blood pressure guidelines."
Johns Hopkins Medicine: "High Blood Pressure/Hypertension."
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Unfortunately, yes. Suffering from untreated or poorly controlled high blood pressure for a long time can be detrimental to your eyes. Several eye diseases are directly or indirectly caused by high blood pressure (hypertension).High Blood Pressure (Hypertension)
High blood pressure (hypertension) is a disease in which pressure within the arteries of the body is elevated. About 75 million people in the US have hypertension (1 in 3 adults), and only half of them are able to manage it. Many people do not know that they have high blood pressure because it often has no has no warning signs or symptoms.
Systolic and diastolic are the two readings in which blood pressure is measured. The American College of Cardiology released new guidelines for high blood pressure in 2017. The guidelines now state that blood normal blood pressure is 120/80 mmHg. If either one of those numbers is higher, you have high blood pressure.
The American Academy of Cardiology defines high blood pressure slightly differently. The AAC considers 130/80 mm Hg. or greater (either number) stage 1 hypertension. Stage 2 hypertension is considered 140/90 mm Hg. or greater.
If you have high blood pressure you are at risk of developing life threatening diseases like stroke and heart attack.
REFERENCE: CDC. High Blood Pressure. Updated: Nov 13, 2017.
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High Blood Pressure Symptoms
Most people with high blood pressure have no signs or symptoms, even if blood pressure readings reach dangerously high levels. In some patients, symptoms may include fatigue, headaches, dizziness, confusion, sweating, chest pain and vision problems.高血压的公关是什么essure (Hypertension)?
High blood pressure or hypertension is when the blood pressure readings consistently range from 140 or higher for systolic or 90 or higher for diastolic. Blood pressure readings above 180/120 mmHg are dangerously high and require immediate medical attention.Which Blood Pressure Number Is the Most Important?
The blood that flows through the arteries (blood vessels carrying blood from the heart to other parts of the body) exerts pressure against the arterial walls. The number above (120) is called the systolic blood pressure and the number below (80) is called the diastolic blood pressure. Though both readings are important, many doctors believe that systolic blood pressure is a better predictor of complications of hypertension, such as heart disease or stroke.