Cvs: Hypertension Flashcards
• Maintenance of a normal blood pressure is dependent on the balance between _______ & _______
cardiac output and peripheral vascular resistance.
• Most patients with essential hypertension have a normal _______ but a raised _______
cardiac output
peripheral resistance
{Essential (primary) hypertension occurs when you have abnormally high blood pressure that’s not the result of a medical condition ie no known secondary cause}
Prolonged smooth muscle constriction is thought to induce structural changes with thickening of the arteriolar vessel walls possibly mediated by angiotensin, leading to an irreversible rise in ______________
peripheral resistance
great many interrelated factors contribute to the raised blood pressure in hypertensive patients.
Among the factors that have been intensively studied are
salt intake, obesity, insulin resistance, the renin- angiotensin system, and the sympathetic nervous system
In the past few years, other factors have been evaluated, including
genetics, endothelial dysfunction (as manifested by changes in endothelin and nitric oxide), low birth weight and intrauterine nutrition, and neurovascular anomalies.
HT affects up to ___% of the. population of the world
• It is responsible for many cases of _____, ______ & ______________
20%
MI
stroke
chronic renal disease
Whites particularly suffer the ravages of HT and are more likely than Blacks to experience serious complications.
T/F
False
Hypertension is defined as a blood pressure level below which ?
the patient can benefit from its reduction
Hypertension is Usually taken as a sustained
diastolic BP?
Or systolic BP?
Or?
> 90mmHg
> 160mmHg
Both
According to 1999 WHO/ISH Guidelines draw a table showing hypertension
SBP. DBP
. Optimal <120 and <80
• Normal. <130 and <85
• High normal 130-139 and/or 85-89
• Grade 1 140-159 &/or 90-99
• Borderline. 140-149 &/or 90-94
• Grade 2 160-179 &/or 100-109
• Grade 3 >/=180 &/or >/=110
• Isolated SHT >/=140 & <90
• Borderline 140-149 <90
• Grade/Stage4 >210 >120
Optimal
Normal
<120 and <80
Normal <130 and <85
High normal
Grade 1
130-139 and/or 85-89
140-159 and/or 90-99
Borderline
Grade 2
140-149 and/or 90-94
160-179 and/or 100-109
Grade 3
Isolated Systolic hypertension
> =180 and/or >=110
> =140 and <90
Borderline
Grade 4
140-149 and <90
> 210 and >120