- *No specific cause
- *Combination of genetic and environmental factors.
- *Obesity, ETOH, smoking, NA intake, alterations in Renin-Angiotensin system.
- From another cause.
- Chronic Kidney disease
- Coarctation of the aorta
- Cushing's syndrome
- Drug induced
- Renovascular HTN
- Sleep apnea
- Thyroid disease
Medications that increase BP
Oral contraceptives, steroids, appetite suppressants, antidepressants (tricylic), Effexor, NSAIDS, some nasal decongestants, and herbal products.
Most common in what race?
What percentage of pts have essential(idiopathic) HTN?
Strongly associated with what disease?
Type II Diabetes.
HR, stroke volume, blood volume, and venous capacitance.
TPR (total peripheral resistance) depends on?
- CO x TPR
- (highest during systole)
- (lowest during diastole)
Beta receptors do what?
stimulate the release of Norepinephrine, where as alpha- 2 receptors inhibit norepinephrine release, which produces vasodilation and decreases BP.
- (located on heart and kidneys)
- -Regulate HR and contractility which affects cardiac output.