USMLE Forum Archives - USMLE Step 1 - Angiotensin II
Angiotensin II
drspleen - 03-17-11 18:15
The actions of Angiotensin II include all of the following, except:
* A. Simulates release of aldosterone
* B. Potent vasoconstriction
* C. Decreases Na/H exchange in the proximal tubules
* D. Stimulates release of ADH
* E. Stimulates hypothalamus to increase thirst sensation
drspleen - 03-17-11 18:15
The actions of Angiotensin II include all of the following, except:
* A. Simulates release of aldosterone
* B. Potent vasoconstriction
* C. Decreases Na/H exchange in the proximal tubules
* D. Stimulates release of ADH
* E. Stimulates hypothalamus to increase thirst sensation
The correct answer and explanation will be available after you answer.
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#3
Re: Angiotensin II babbu5508 - 03-18-11 19:05 My answer is: c.
C. Decreases Na/H exchange in the proximal tubules...seems to be right by exclusion of the other options...
#4
Re: Angiotensin II sudha2015 - 03-19-11 10:23 The actions of Angiotensin II include all of the following, except:
* A. Simulates release of aldosterone
* B. Potent vasoconstriction
* C. Decreases Na/H exchange in the proximal tubules
* D. Stimulates release of ADH
* E. Stimulates hypothalamus to increase thirst sensation
c
#5
Re: Angiotensin II
drspleen - 03-21-11 18:39 The actions of Angiotensin II include: 1) Potent vasoconstriction to increase blood pressure. 2) Increases in Na/H exchange and HCO3 reabsorption in proximal tubules 3) Aldosterone release, which increases intravascular volume 4) ADH release, which increases intravascular volume 5) Hypothalamic stimulation to generate a thirst sensation
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