Skeletal Muscle in a hypertensive after a fall! - USMLE Forums
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  #1  
Old 09-30-2011
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MusculoSkeletal Skeletal Muscle in a hypertensive after a fall!

A 63 yrs old man with hypertension arrives at emergency dept, after a fall...his bp : 170/115, his HR : 90 ....which one of the following is most likely decreased in skeletal muscles of leg

A. adenosine
B. arterial bp
C. arteriolar resistance
D. blood flow
E. venous o2 concentration
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Old 09-30-2011
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D. blood flow ?????
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Old 10-01-2011
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resistance i think c is the answer.
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Old 10-01-2011
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So i guess is Decrease TPR, so more flow / more flow can go further.
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Old 10-01-2011
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Quote:
Originally Posted by sibb View Post
a 63 yrs old man with hypertension arrives at emergency dept, after a fall...his bp : 170/115 ,his HR : 90 ....which one of the following is most likely decreased in skeletal muscles of leg

A. adenosine
B.arterial bp
C.arteiolar resistance
D. blood flow
E. venous o2 conc
ok so the guy has had a fall.... maybe he had a bleed... but it doesnt say...
anyways....
1] increased BP = vascular contraction
2] vascular contraction = increased BP/ arteriolar resistance
BUT
the increased resistance is due to a decrease in adenosine

adenosine normally acts via the cGMP/NO pathway of 2nd msngrs to produce vasodilation
hence in vaso constriction it will be decreased!
hope that helps
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Old 10-02-2011
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Quote:
Originally Posted by mbbs2010 View Post
ok so the guy has had a fall.... maybe he had a bleed... but it doesnt say...
anyways....
1] increased BP = vascular contraction
2] vascular contraction = increased BP/ arteriolar resistance
BUT
the increased resistance is due to a decrease in adenosine

adenosine normally acts via the cGMP/NO pathway of 2nd msngrs to produce vasodilation
hence in vaso constriction it will be decreased!
hope that helps
So you mean, there is decrease in adenosine level?
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Old 10-04-2011
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hey frds ;
so what is the exact answer , adenosine or resistence
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Old 10-04-2011
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D. blood flow
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Old 10-04-2011
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D. blood flow
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Old 10-04-2011
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D blood Flow
Reason his sympathetic system is active. . .Raising BP,increased HR. . .blow flow diverted to vital organs by vasoconstriction. . .
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Old 10-04-2011
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Default Answer is adenosine

answer according to q book is adenosine
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Old 10-04-2011
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explanation
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