CVPV/EOL EXAM 2 Flashcards
(258 cards)
The big picture of CVPV is if blood is flowing to which three locations?
- heart
- extremities
- organs
If blood is not flowing to the heart, extremities or organs why might this be?
- blockage
- Clot
- Vasoconstriction
- Stretched out veins.
What are questions we should ask when we want to know if the heart is being an effective pump?
- are we generating a good cardiac output
- Are the organs being perfused
What is cardiac output?
The amount of blood pumped in 1 min
What might be some reason that the heart is not being an effective pump? list 3
- Ischemic/Infarct issues
- Heart failulre
- Valve problem
The lower the cardiac the __1__ the perfusion to organs and extremities
- Poorer
True or false: The vast majority of cardiac diseases start off as hypertension?
True
Remember the higher the blood pressure __1__ off the problems will be
worse
True or false: Poor diets and poor exercise are a huge factor in hypertension?
True
What are two causes of hypertension?
- Increased cardiac output
- Increased peripheral resistance
Can be both or either or…
What is stroke volume?
The volume of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction
When you have increased peripheral resistance as a cause of hypertension what is going on?
- increased Blood viscosity
- Decreased vessel diameter
True or false: Vasoconstriction due to hyperthermia is a cause of hypertension?
True
What is primary hypertension?
Type of hypertension that can not be placed on a treatable factor
What is secondary hypertension?
- Hypertension that can be fixed by fixing the factor that is causing it?
What salt goes…. water…. does what
Goes
What are some causes of hypertension?
- Renal vascular disease
- Valve disorder
- Sleep apnea
- Pregnancy
- thyroid disorder
- oral contraceptives
- antihistamines
- corticosteroids
What does continued HTN do to the blood vessels?
- Puts stretch and stress on the vessel leading to damage to the vessel.
- Can cause hypertrophy- enlargement of cells
- Can cause hyperplasia- Over replication of cells (seen often in cancer patients)
- Inflammatory response
** both hypertrophy and hyperplasia happen as a result of an inflammatory response that eventually leads to narrowing of a vessell/
What are some risk factors of hypertension?
- Family history
- increasing age
- Cigarette smoking
- Obesity
- Heavy alcohol consumption
- black race
- Men (early to middle adulthood)
- Women (over 50 years)
- High dietary sodium intake
- Low dietary intake of K+, Ca++, Mg++
- Glucose intolerance
True or false: Hypertension is considered the silent killer?
True- builds gradually, people don’t realize the progression until it has progressed to crisis level hypertension
True or false: it is not important to attend yearly appointment and have blood pressure checked?
False
What are s/s of hypertension?
- Asymptomatic
- Headache *
- Visual disturbances*
- Chest pain*
- Flushed face*
- Epistaxis *
- Dizziness*
** when patients start experiencing these symptoms it likely means theyve been dealing with high BP for awhile now and prob. never knew.
What is complicated HTN??
Sustained hypertension that has effects beyond hemodynamics (organ involvement)
What are two mechanisms of tissue damage?
- Ischemia
- Edema