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  #1  
Old 11-10-2011
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Vascular Diabetic vascular disease with EM image!

A 66-year-old man patient who was diagnosed with type II diabetes 10 years ago presents with an aching pain in the muscles of his lower extremity. He says the pain is relieved by rest and worsened by resumed physical activity. His lower limbs appear cold, pale, and discolored, and he has a sore on the skin of his left calf. He has a weak tibial pulse on both sides and poor skin filling from capillaries. In this patient, which of the following functions would be primarily affected in the blood vessel from the lower extremity shown in the accompanying transmission electron micrograph?

Diabetic vascular disease with EM image!-imageb.jpg
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A. Adaptation to systolic pressure
B. Distribution of blood within an organ
C. Blood flow from the aorta to specific organs
D. Return of lymphocytes to the blood
E. Return of venous blood to the heart
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  #2  
Old 11-10-2011
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C. Blood flow from the aorta to specific organs
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  #3  
Old 11-10-2011
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intermittent claudication is due to athrerosclerosis. . .
C.........
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Old 11-10-2011
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I am not sure but ill say C too
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Old 11-11-2011
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C in my opinion
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Old 11-11-2011
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nope the answer is b distribution of blood in a organ
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Old 11-11-2011
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Why not A? Could you give out the explanation?

Thanks a lot!
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Old 11-13-2011
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[QUOTE=scopusmount;78198]A 66-year-old man patient who was diagnosed with type II diabetes 10 years ago presents with an aching pain in the muscles of his lower extremity. He says the pain is relieved by rest and worsened by resumed physical activity. His lower limbs appear cold, pale, and discolored, and he has a sore on the skin of his left calf. He has a weak tibial pulse on both sides and poor skin filling from capillaries. In this patient, which of the following functions would be primarily affected in the blood vessel from the lower extremity shown in the accompanying transmission electron micrograph?

Attachment 2121
click image to enlarge

A. Adaptation to systolic pressure
B. Distribution of blood within an organ
C. Blood flow from the aorta to specific organs
D. Return of lymphocytes to the blood
E. Return of venous blood to the heart[/QUOTE]
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Old 02-23-2012
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Quote:
Originally Posted by scopusmount View Post
nope the answer is b distribution of blood in a organ
please explain, why it is not c?
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Old 02-23-2012
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I would go for C too, atherosclerosis --> reduced blood vessels diameter --> increased resistance and reduced blood flow,
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Old 02-23-2012
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i would say C.

B is WITHIN the organ itself.
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Old 02-23-2012
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Quote:
Originally Posted by scopusmount View Post
A 66-year-old man patient who was diagnosed with type II diabetes 10 years ago presents with an aching pain in the muscles of his lower extremity. He says the pain is relieved by rest and worsened by resumed physical activity. His lower limbs appear cold, pale, and discolored, and he has a sore on the skin of his left calf. He has a weak tibial pulse on both sides and poor skin filling from capillaries. In this patient, which of the following functions would be primarily affected in the blood vessel from the lower extremity shown in the accompanying transmission electron micrograph?

Attachment 2121
click image to enlarge

A. Adaptation to systolic pressure
B. Distribution of blood within an organ
C. Blood flow from the aorta to specific organs
D. Return of lymphocytes to the blood
E. Return of venous blood to the heart
B. Distribution of blood within an organ

Most of the time images have nothing to do with the question stem. Its just a distraction.
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Old 02-23-2012
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Quote:
Originally Posted by bunny View Post
B. Distribution of blood within an organ

Most of the time images have nothing to do with the question stem. Its just a distraction.
Can you please explain?
Thanks
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Old 02-23-2012
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Can any one post an explanation plz?, why B? why not C?
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Old 02-23-2012
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B DM leading to arteriolosclerosis

A would apply to the effect atherosclerosis has on large arteries

Last edited by ab_baby; 02-23-2012 at 12:50 PM.
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  #16  
Old 02-23-2012
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I think i came to a conclusion:

Blood flow FROM THE AORTA doesnt change. blood flow changes only inside of peripheral organs.

So the answer is B
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  #17  
Old 02-23-2012
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A. Adaptation to systolic pressure Wrong because it should be an arteriolar problem and the poor capillaries filling is mentioned in the stem.
B. Distribution of blood within an organ Correct. Due to the patient history and the picture given. Capillaries are used to distribute blood within an organ. Poor capillary refill hinders this. The question mentions the picture is a transmission electron micrograph the only vessel small enough that should be seen by it must be capillaries (however that doesn't matter).
C. Blood flow from the aorta to specific organs Wrong. If it would have been aorta their should be fatigue, shortness of breath and/or abdominal pain.
D. Return of lymphocytes to the blood Obviously no connection whatsoever
E. Return of venous blood to the heart Its not a venous problem otherwise there should have been varicose veins. Pain on movement is classic claudication which occurs in arteries.
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Cardiovascular-, Endocrine-, Micrographs-, Pathology-, Step-1-Questions

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