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  #161 (permalink)  
Old 09-06-2008, 04:24 PM
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Quote:
Originally Posted by wookie View Post
vasodilation will cause increased Venous return to the heart?
The initial stage of shock is stage of compensation, the sympathetic stimulation and catecholamines will try to maintain or even increase CO but as the shock progresses to 2nd and 3rd stage the CO decreases
Wookie nice explanation.

How are you studying for pathophys?

Last edited by TraperJohnMD; 09-07-2008 at 12:11 PM.
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  #162 (permalink)  
Old 09-06-2008, 05:04 PM
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I don't know that you should you advertise that to everybody.
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  #163 (permalink)  
Old 09-06-2008, 11:09 PM
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Originally Posted by TraperJohnMD View Post
All of a sudden wookie becomes a whiz at path after failing and then having private sessions with Dr M.

How are you studying for pathophys?
Did I offend you in anyway?. I am not proud of myself that I had to repeat path but you don't have to remind me that. I think it was very insensitive on your part.
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  #164 (permalink)  
Old 09-06-2008, 11:11 PM
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folks, any flaming or insults will result in infraction. review your posts and edit to comply. there will be no individual pms
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  #165 (permalink)  
Old 09-07-2008, 01:33 PM
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Q blah de blah man has a left ventricular mural thrombosis. If it embolizes, the most likely sight for embolism is

A) brain
B) lower extremities
C) kidney
D) Liver
E) Intestines

Sure these all involve a systemic route, so what. I think the q is really asking, in which area is the most catastrophic damage done.

I am saying the answer is C,as the kidney is a solid organ and therefore has only one blood supply. Brain (overlooking a watershed infarction) has anastamosis, lower ext sounds like a venous problem. Liver has a dual blood supply (hepatic and portal). Intestines also have a double blood supply (portal and caval).
Please, any constructive criticism from 5/6th termers (having mastered Pathology) on up (pathologist alumni-Dunsoon) would be appreciated.
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  #166 (permalink)  
Old 09-07-2008, 01:36 PM
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4th termers, let's use this thread as a substitute for the lack of discussion forum for Path, on Angel.
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  #167 (permalink)  
Old 09-07-2008, 01:46 PM
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Quote:
Originally Posted by ecela7 View Post
Q blah de blah man has a left ventricular mural thrombosis. If it embolizes, the most likely sight for embolism is

A) brain
C) kidney
D) Liver
E) Intestines

Sure these all involve a systemic route, so what. I think the q is really asking, in which area is the most catastrophic damage done.

I am saying the answer is C,as the kidney is a solid organ and therefore has only one blood supply. Brain (overlooking a watershed infarction) has anastamosis, lower ext sounds like a venous problem. Liver has a dual blood supply (hepatic and portal). Intestines also have a double blood supply (portal and caval).
Please, any constructive criticism from 5/6th termers (having mastered Pathology) on up (pathologist alumni-Dunsoon) would be appreciated.
B) Lower extremities.
Sorry I pick something different. Brain is 10% of the time.
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  #168 (permalink)  
Old 09-07-2008, 01:51 PM
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the question isnt asking where it will cause the most damage or whatever, but where the embolus will go if it comes from the left ventricle.....most likely its the brain or l ext.

thats why anyone with a-fib should be given anti-coagulants such as warfarin to prevent stroke or other embolic events.
there are too many other vessels to by pass before it hits the kidney, and other stuff/organs

the carotids are the main initial divisions from the arch of aorta , so a good chance that the embolus will go there.
the l. ext is common because of the effect of gravity

i just dont remember the exact %
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  #169 (permalink)  
Old 09-07-2008, 01:57 PM
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here is another way to think of it...
this is why knowing anatomy is important

think of the renal a and and liver and intestine, which is probably supplied by the celiac a. all branches from aorta. now those arteries....there is an angle which it breaks off the descending aorta...it is LESS likely the embolus will make a TURN and go to these arteries.

it is MORE common to shoot straight up to the carotids right out of the aorta (high pressure) OR go straight down the aorta (gravity) and finally gets stuck in the small arteries in the leg after going thro the iliacs, femoral....my guess is the popliteal a. it is one of the smallest, narrowest artery which embolic event can occur
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  #170 (permalink)  
Old 09-07-2008, 01:59 PM
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btw
renal artery stenosis do occur. but most often from htn damage or some sort of atheroscelorsis or fibromuscular changes. and when that occurs, it is bad bc it is only supplied by 1 artery
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