Hypertension Flashcards
Hypertension
Hypertension is defined as systolic blood pressure of 140 mmHg or greater, diastolic blood pressure of 90 mmHg or greater, or taking antihypertensive medication
Types of Hypertension
Essential hypertension
- 95%
- No underlying cause
Secondary hypertension
- Underlying cause
Causes of secondary hypertension
- Renal
- Parenchymal
- Vascular
- Others
- Endocrine
- Miscellaneous
- Unknown
Blood pressure chart
Diastolic/ systolic
Normal -> Less than 120/80
Elevated -> 120-129/80
Hypertensive stage 1 -> 130 - 139/ 80-89
Hypertensive stage 2 -> 140 or higher / 80 or higher
Hypertensive crisis -> Higher than 180/ Higher than 120
Predisposing factors
• Advancing Age
• Sex (men and postmenopausal women)
• Family history of cardiovascular disease
• Sedentary life style & psycho-social stress
• Smoking ,High cholesterol diet, Low fruit consumption
• Obesity & wt. gain
• Co-existing disorders such as diabetes, and
hyperlipidemia
• High intake of alcohol
Diseases attributable to hypertension
Heart failure Gangrene of the lower extremities Aortic aneurysm Blindness Chronic kidney failure Stroke Preeclampsia/eclampsia Cerebral hemorrhage Hypertensive encephalopathy Coronary heart disease Myocardial infarction Left Ventricular hypertrophy
Clinical manifestations
- No specific complains or manifestations other than elevated systolic and/or diastolic BP (Silent Killer )
- Morning occipital headache
- Dizziness
- Fatigue
- In severe hypertension, epistaxis or blurred vision
Self measurement of BP
Provides information on:
- Response to antihypertensive therapy
- Improving adherence with therapy
- Evaluating white-coat HTN
Home measurement of >135/85 mmHg is generally considered to be hypertensive.
Home measurement devices should be checked regularly.
Dietary Management of Hypertension
DASH stands for Dietary Approaches to Stop Hypertension (high blood pressure). The diet is
simple:
- Eat more fruits, vegetables, and low-fat dairy foods
- Cut back on foods that are high in saturated fat, cholesterol, and trans fats
- Eat more whole-grain foods, fish, poultry, and nuts
- Limit sodium, sweets, sugary drinks, and red meats
- In research studies, people who were on the DASH diet lowered their blood pressure within 2 weeks
- Another diet – DASH-Sodium – calls for cutting back sodium to 1,500 milligrams a day (about 2/3 teaspoon). Studies of people on the DASH-Sodium plan lowered their blood pressure as well.
DASH DIET TIPS
- Add a serving of vegetables at lunch and at dinner.
- Add a serving of fruit to your meals or as a snack. Canned and dried fruits are easy to use, but check that they don’t have added sugar.
- Use only half your typical serving of butter, margarine, or salad dressing, and use low-fat or fat-free condiments.
- Drink low-fat or skim dairy products any time you would normally use full-fat or cream.
- Limit meat to 6 ounces a day. Make some meals vegetarian.
- Add more vegetables and dry beans to your diet.
- Instead of snacking on chips or sweets, eat unsalted pretzels or nuts, raisins, low-fat and fat-free yogurt, frozen yogurt, unsalted plain popcorn with no butter, and raw vegetables.
- Read food labels to choose products that are lower in sodium.
NON-PHARMACOLOGIC STRATEGIES
- Weight management
- Low sodium diet
- Low fat diet
- Smoking cessation
- Restrict alcohol and caffeine
- Regular aerobic exercise
- Stress management