Test 2 Flashcards
(36 cards)
RAAS
Renin angiotensin aldosterone system
What is the second leading cause of preventable death
Hypertension
Where does renin come from
Kidney
What is angiotensin 1
It is a weak vasoconstrictor
Part of the RAAS formed after angiotensinogen and renin form
What receptor is responsible for sensing pressure
Baroreceptors
Found in aorta and carotid
How do kidneys regulate blood pressure
Via retention or excretion of sodium and water by renin angiotensin aldosterone system
What is the recommended daily intake of sodium
1500 mg a day
What does aldosterone do
Retains water
What is the normal bmi
18-25
How do you calculate the cardiac output
Co= stroke volume x heart rate
What are some hormones that effect blood pressure
Epinephrine and norepinephrine released by adrenal glands
Vasoconstriction and increase heart rate
What is a normal BP
120/80
What is considered elevated or pre hypertension
120-129/<80
Stage 1 hypertension
130-139/80-89
Stage 2 hypertension
Greater than 140/ >90
Hypertensive crisis
> 180/>120
What are four main side effects from hypertension
Chronic vascular disease
Chronic kidney disease
Cerebral vascular disease (stroke)
Heart failure (hypertrophy in certain chambers)
What are the two types of hypertension
Essential
Most common
Not caused by something else
Secondary
Caused by specific disease raising bp
What can high blood pressure cause to the vessels
Micro tears leading to build up of plaques
What is the recommended level for total cholesterol
less than 200mg/dl
What would you like the LDL at
less than 100mg/dl
What is the recommended level for HDL
greater than 40mg/dl
What is the reason why LDL is considered the bad cholesterol
This will transport cholesterol through the blood stream releasing some to be engulfed by macrophages turning them in to foam cells which will blanket the vessel wall building up
What is the main drug class used to treat hyperlipidemia
Statins