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Fundamentals Part 2 > Regulating Arterial Pressure > Flashcards

Flashcards in Regulating Arterial Pressure Deck (13):
1

biggest contributors to regulating arterial pressure

autonomic nervous system & RAAS

2

what converts Angiotensin I to II

ACE (angiotensin converting enzyme)

3

Where are baroreceptors located?

carotid bodies and aortic arch

4

If you were to massage the carotid sinus by hand, how would the body respond to a sensed increase in pressure

the body would compensate by decreasing sympathetic tone and this slows heart rate

5

A decrease in arterial pressure would result in what actions by kidney

Renin is released by juxtaglomerular cells

6

In individuals with "set point" hypertension, they can be controlled with:

ACE inhibitors (Lotensin) or ACE receptor antagonist (Cozaar)

7

what is an example of a maladaptive response by the RAAS

with systolic heart failure, activation of the RAAS system to increase blood volume aggravates the heart

8

In cirrhosis, inappropriate aldosterone secretion contributes to ascites. This can be treated by spironolactone which does what?

is antagonist for aldosterone

9

what is ascites? what is main cause

fluid accumulation in peritoneal cavity, often caused by liver failure/cirrhosis

10

In individuals with unilateral renal artery stenosis from atherosclerotic CV disease, how would increased serum renin levels elevate bp to levels which risk:

stroke & MI

11

what is the result of SIADH

too much water in serum (normal Na+) however results in lower Na+ serum measurement....

12

how would you treat a patient with a low serum sodium level

Fluid Restriction (too much water vs. sodium)

13

ANP does what

inhibits Na+ reabsorption due to too much preload. It is sensed by the atria