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December 20, 2014

Homework Help: Biology

Posted by Lena on Saturday, February 5, 2011 at 2:14pm.

Supposing you have a renal stenosis, what kind of affect does that have on the heart.

What I do know:
- decreased flow to the kidneys
- kidneys assumes that overall blood volume have decreased
- RNN system is activated
- = increase in blood pressure (hypertension)

I'm having a hard time explaining how this all affects the heart. I know the kidneys are trying to increase blood volume so they start retaining salt but the volume of the blood is norma already. So you have an increased blood volume = increased blood pressure which I guess means the heart is under a lot more pressure because more blood is being pumped into the right atria? Could someone explain this to me. Thanks!

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