How to manage hypertension
Hypertension or high blood pressure is a condition in which the blood pressure in the arteries is chronically elevated. With every heart beat, the heart pumps blood through the arteries to the rest of the body. Blood pressure is the force of blood that is pushing up against the walls of the blood vessels. If the pressure is too high, the heart has to work harder to pump, and this could lead to organ damage and several illnesses such as heart attack, stroke, heart failure, aneurysm, or renal failure.
The normal level for blood pressure is below 120/80, where 120 represents the systolic measurement (peak pressure in the arteries) and 80 represents the diastolic measurement (minimum pressure in the arteries). Blood pressure between 120/80 and 139/89 is called prehypertension (to denote increased risk of hypertension), and a blood pressure of 140/90 or above is considered hypertension.
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Hypertension may be classified as essential or secondary. Essential hypertension is the term for high blood pressure with unknown cause. It accounts for about 95 per cent of cases. Secondary hypertension is the term for high blood pressure with a known direct cause, such as kidney disease, tumors, or birth control pills.
Some 73 million adults in the United States are affected by hypertension. The condition also affects about two million teens and children.
What causes hypertension?
Though the exact causes of hypertension are usually unknown, there are several factors that have been highly associated with the condition. These include:
Smoking
Obesity or being overweight
Diabetes
Sedentary lifestyle
Lack of physical activity
High levels of salt intake (sodium sensitivity)
Insufficient calcium, potassium, and magnesium consumption
Vitamin D deficiency
High levels of alcohol consumption
Stress
Ageing
Medicines such as birth control pills
Genetics and a family history of hypertension
Chronic kidney disease
Adrenal and thyroid problems or tumors
Statistics indicate that African Americans have a higher incidence of hypertension than other ethnicities.
What are symptoms of hypertension?
There is no guarantee that a person with hypertension will present any symptoms of the condition. About 33 per cent of people actually do not know that they have high blood pressure, and this ignorance can last for years. For this reason, it is advisable to undergo periodic blood pressure screenings even when no symptoms are present.
Extremely high blood pressure may lead to some symptoms, however, and these include:
Severe headaches
Fatigue or confusion
Dizziness
Nausea
Problems with vision
Chest pains
Breathing problems
Irregular heartbeat
Blood in the urine
How is hypertension diagnosed?
Hypertension may be diagnosed by a health professional who measures blood pressure with a device called a sphygmomanometer - the device with the arm cuff, dial, pump, and valve. The systolic and diastolic numbers will be recorded and compared to a chart of values. If the pressure is greater than 140/90, you will be considered to have hypertension.
A high blood pressure measurement, however, may be spurious or the result of stress at the time of the exam. In order to perform a more thorough diagnosis, physicians usually conduct a physical exam and ask for the medical history of you and your family. Doctors will need to know if you have any of the risk factors for hypertension, such as smoking, high cholesterol, or diabetes.
If hypertension seems reasonable, tests such as electrocardiograms (ECG) and echocardiograms will be used in order to measure electrical activity of the heart and to assess the physical structure of the heart. Additional blood tests will also be required to identify possible causes of secondary hypertension and to measure renal function, electrolyte levels, sugar levels, and cholesterol levels.
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How is hypertension treated?
The main goal of treatment for hypertension is to lower blood pressure to less than 140/90 - or even lower in some groups such as people with diabetes, and people with chronic kidney diseases. Treating hypertension is important for reducing the risk of stroke, heart attack, and heart failure.
High blood pressure may be treated medically, by changing lifestyle factors, or a combination of the two. Important lifestyle changes include losing weight, quitting smoking, eating a healthful diet, reducing sodium intake, exercising regularly, and limiting alcohol consumption.
Medical options to treat hypertension include several classes of drugs. ACE inhibitors, ARB drugs, beta-blockers, diuretics, calcium channel blockers, alpha-blockers, and peripheral vasodilators are the primary drugs used in treatment. These medications may be used alone or in combination, and some are only used in combination. In addition, some of these drugs are preferred to others depending on the characteristics of the patient (diabetic, pregnant, etc.).
If blood pressure is successfully lowered, it is wise to have frequent checkups and to take preventive measures to avoid a relapse of hypertension.
According to Medilexicon's medical dictionary, hypertension means "High blood pressure; transitory or sustained elevation of systemic arterial blood pressure to a level likely to induce cardiovascular damage or other adverse consequences."
The normal level for blood pressure is below 120/80, where 120 represents the systolic measurement (peak pressure in the arteries) and 80 represents the diastolic measurement (minimum pressure in the arteries). Blood pressure between 120/80 and 139/89 is called prehypertension (to denote increased risk of hypertension), and a blood pressure of 140/90 or above is considered hypertension.
2
Hypertension may be classified as essential or secondary. Essential hypertension is the term for high blood pressure with unknown cause. It accounts for about 95 per cent of cases. Secondary hypertension is the term for high blood pressure with a known direct cause, such as kidney disease, tumors, or birth control pills.
Some 73 million adults in the United States are affected by hypertension. The condition also affects about two million teens and children.
What causes hypertension?
Though the exact causes of hypertension are usually unknown, there are several factors that have been highly associated with the condition. These include:
Smoking
Obesity or being overweight
Diabetes
Sedentary lifestyle
Lack of physical activity
High levels of salt intake (sodium sensitivity)
Insufficient calcium, potassium, and magnesium consumption
Vitamin D deficiency
High levels of alcohol consumption
Stress
Ageing
Medicines such as birth control pills
Genetics and a family history of hypertension
Chronic kidney disease
Adrenal and thyroid problems or tumors
Statistics indicate that African Americans have a higher incidence of hypertension than other ethnicities.
What are symptoms of hypertension?
There is no guarantee that a person with hypertension will present any symptoms of the condition. About 33 per cent of people actually do not know that they have high blood pressure, and this ignorance can last for years. For this reason, it is advisable to undergo periodic blood pressure screenings even when no symptoms are present.
Extremely high blood pressure may lead to some symptoms, however, and these include:
Severe headaches
Fatigue or confusion
Dizziness
Nausea
Problems with vision
Chest pains
Breathing problems
Irregular heartbeat
Blood in the urine
How is hypertension diagnosed?
Hypertension may be diagnosed by a health professional who measures blood pressure with a device called a sphygmomanometer - the device with the arm cuff, dial, pump, and valve. The systolic and diastolic numbers will be recorded and compared to a chart of values. If the pressure is greater than 140/90, you will be considered to have hypertension.
A high blood pressure measurement, however, may be spurious or the result of stress at the time of the exam. In order to perform a more thorough diagnosis, physicians usually conduct a physical exam and ask for the medical history of you and your family. Doctors will need to know if you have any of the risk factors for hypertension, such as smoking, high cholesterol, or diabetes.
If hypertension seems reasonable, tests such as electrocardiograms (ECG) and echocardiograms will be used in order to measure electrical activity of the heart and to assess the physical structure of the heart. Additional blood tests will also be required to identify possible causes of secondary hypertension and to measure renal function, electrolyte levels, sugar levels, and cholesterol levels.
4
How is hypertension treated?
The main goal of treatment for hypertension is to lower blood pressure to less than 140/90 - or even lower in some groups such as people with diabetes, and people with chronic kidney diseases. Treating hypertension is important for reducing the risk of stroke, heart attack, and heart failure.
High blood pressure may be treated medically, by changing lifestyle factors, or a combination of the two. Important lifestyle changes include losing weight, quitting smoking, eating a healthful diet, reducing sodium intake, exercising regularly, and limiting alcohol consumption.
Medical options to treat hypertension include several classes of drugs. ACE inhibitors, ARB drugs, beta-blockers, diuretics, calcium channel blockers, alpha-blockers, and peripheral vasodilators are the primary drugs used in treatment. These medications may be used alone or in combination, and some are only used in combination. In addition, some of these drugs are preferred to others depending on the characteristics of the patient (diabetic, pregnant, etc.).
If blood pressure is successfully lowered, it is wise to have frequent checkups and to take preventive measures to avoid a relapse of hypertension.
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