Addicudo
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Carotid stenosis just above the bifurcation .what happens?
a) increase in TPR b) decrease in HR c) increase in BP
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| drduck
Forum Guru
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stenosis distal to carotid sinus....fall in BP.
stenosis proximal......................rise in BP,
so.....if above means distal....it shud be rise in TPR....
though not sure...
whats the answer???
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| inkspot
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proximal to carotid sinus (close to heart) --> less blood to sinus ---> response and high bp
distal to carotid sinus ---> meets resistance distally ---> increased TPR -----> decreased BP
? correct me
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| Addicudo
Forum Guru
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I aint sure of it .. BUt since the Question mentions .. that STENOSIS JUST ABLVE THE BIFURCATION .. then there would be INCREASED pressure below it .. that is in the Carotid A which willl contain the Carotid body .. and thus .. Bradycardia .. !! BUt aint sure .. need more brainz for this .. !
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| Luckyall
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the carotid sinus is a localized dilation of the internal carotid artery at its origin, the common carotid artery ! So i guess they test your knowledge on this aspect....
your logic is great----> incr press in carot sinus---> clinically similar effects with a carotis massage---->pt is slightly hTN & slower HR .
You ll do great this week !
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| rock
Forum Elite
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i kinda thought the same way as drduck and inkspot... i thought it would be rise in TPR...but i am not sure either...just posting a link here that i found.
http://en.wikipedia.org/wiki/Carotid_body
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| new_n_lost
Politically InCorrect
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look here is the problem If u r talking abt the Carotid stenosis abv the bifurcation Means u r having inc presures below the stenosis thus Vaso dilation will occur there be a drop in both BP N HR cos the idea of the baroreceptors is to DEC THE Cardiac Output
Correct me if i m wrong
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| new_n_lost
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Rock wht u r talking abt is different the Carotid Bodies and Carotid Sinus r different as one has Chemoreceptors and other has Baroreceptors. the Anatomical postition is also different
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FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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| Luckyall
Forum Guru
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FA has a nice picture for anatomical position.... under CVS section of physio
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| rock
Forum Elite
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right nnl...i missed the point totally ...thanks buddy.
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