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Author12 Posts
  #1

• Precapillar sphincters will open when we have
A tissue hypoxia
B constriction of arterioles
C presure in veins going up
D concentration of albumins going up







• Which of these does not increase the secretion of potasium by the distal renal tubule?


a. high potassium diet

b. hyperaldosteronism

c. osmotic diuresis

d. thiazide use

e. respiratory acidosis

  #2

1-A
2-C

  #3

I agree with Usmleasr

  #4

1.B
:roll: 2.c

  #5

1.A
2.C

  #6

i dn have answers but i too agrre wth A n thn C.

  #7

1. A
2. I think it is E.......to compensate for respiratory acidosis H+ secretion will be increased and not K+

  #8

sorry yes answer to 1 should be A

  #9

I think so too, 1-A due to metabolite accumulation i.e. Adenosine, 2-E cuz K+ sequestered to cells in exchng for H+ , H+ will be lost in Princ cell in collect duct in exng for Na (besides any diuretic aside from K-sparrings do increase K loss)

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  #10

The answers are A& E
A because after an episode of hypoxia the sphincters open up allowing hyperaemia known as reactive hyperaemia

I'm not sure about C but in repiratory acidosis the usual renal compensation is excretion of H+ and since H+ is getting excreted the K+ is retained(by Aldosterone)....I guess its best to assume osmotic diuresis causes loss of electrolytes along with it just like the other diuretics.

  #11

I agree, the second question is definitely E.

  #12

i too agree with E for 2nd Q. asmi do have some explaination about c??

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