Pc604 chapter 30 Flashcards
(123 cards)
hypertension is an elevation in the ________blood pressure
arterial
what is considered primary hypertension/
140/90
what is considered pre-hypertension
120/80-139/89
What is the most prevelant type of hypertension
primary or essential hypertension
what is the cause of primary or essential hypertension?
genetics and environment
Primary essential hypertension is asymptomatic until
marked end organ damage
The most significant factor in high blood pressure
Systolic Pressure -because of the potential of the systolic pressure to cause organ damage
isolated systolic high blood pressure is when the
is when the systolic is greater than 140 and the diastolic is LESS THAN 90. (A WIDE PULSE PRESSURE)
what causes isolated systolic high blood pressure
Reduced vascular compliance or aortic stiffening related to atherosclerosis.
What age group is isolated systolic high blood pressure seen
usually over 65 years of age
Low blood pressure on standing is
Orthostatic Hypotension - a rapid change in position causes a dip in blood pressure
What are the causes of orthostatic hypotension?
altered body chemistry, prolonged immobility, venous pooling, starvation, exhaustion, drugs
What are the symptoms of orthostatic hypotension?
dizziness, syncope, blurred vision
A chronic disease of the arterial system is
Arteriosclersosis
Arteriosclersosis causes what in a blood vessel?
an abnormal thickening of the blood vessel walls
The most common form of arteriosclerosis is
atherosclerosis
What happens in atherosclerosis?
soft deposits of intra=arterial fat and fibrin that begin to harden over time are deposited in the vessel wall.
What is the overall significance of atherosclerosis?
A vascular problem that can affect all of the vascular tree.
Symptoms of atherosclerosis depend on
Depends on where the hardening occurs
Major clinical manifestation of atherosclerosis is
Ischemia,
______________initiates and causes the progression of atherosclerosis.
Inflammation
An injury to the endothelial wall initiates the __________process.
Inflammation
chronic endothelial injury can be caused by
hypertension smoking hyperlipidemia hyperhomocystinemia hemodynamic factors toxins viruses immune reactions
Name the layers of the blood vessel wall
Endothelium
Tunica Intima
Tunica Media
Tunica Advantitia