Hypertension or High Blood Pressure sometimes called Arterial is a chronic medical conditions in which the blood pressure in arteries is elevated, blood pressure is summarized by two measurements, Systolic and Diastolic which depends on whether the Heart muscle is contracting (systole) or relax between beats (Diastole) this equal to a maximum and minimum pressure respectively.
Normal blood pressure at rest is within the range of 100 to 140mmHg systolic (Top reading) and 60 to 90mmHg Diastolic (Bottom reading).
High Blood Pressure is when its above 140/90mmHg at separate interval on two or more independent measurements.
Hypertension is classified as either primary (essential) hypertension or secondary hypertension. About 90 to 95% of cases are categorized as primary hypertension which has no obvious underlying medical cause. Secondary hypertension is cause by condition that affect the Kidneys, Arteries, Heart or Endocrine systems.
Signs and Symptoms
Hypertension usually doesn’t have symptoms and commonly identified through blood pressure checks for an unrelated problem. Some people with hypertension have headaches usually at the back of the head in the morning as well as light headedness, vertigo, tinnitus, altered vision of fainting episodes. On clinical evaluation, hypertension may be suspected by examining the optic fundus using an opthalmoscope which may show hypertensive retinopathy.
This is elevated blood pressure (equal or greater than a systolic of 180 or diastolic of 110. People with blood pressure of this range may have no symptoms but are more likely to report headache and dizziness than the general population. A hypertensive emergency is diagnosed when there is evidence or direct damage to one more organs as a result of severely elevated blood pressure greater than 120 diastolic.
The 2004 British Hypertension Society guidelines proposed the following lifestyle changes consistent with those outline by the US National High BP Education programme in 2002 for the prevention of primary hypertension:
- Maintain normal body weight for adult for example: body mass index 20- 25kg/m2
- Reduce dietary sodium intake to less than 100mmol/day (< 6g of sodium chloride or less than 2.4g of sodium/day).
- Engage in regular aerobic physical activity such as brisk walking (> 30 minutes/ day for most days of the week)
- Limit Alcohol consumption to no more than three units/ day in men and no more than two units/ day in women.
- Consume a diet reach in fruits and vegetables
- Keeping your Doctor’s appointment is of extreme importance
Lifestyle modification: this includes but not limited to dietary changes or physical exercise and weight loss as highlighted above.
Medication: anti-hypertensive drugs are used to treat hypertension