AAMC BB QP

[avalonisland888]

Can someone please walk me through this question? Specifically I am struggling with A and D. C and B sounded wrong to me right away

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[deleted872555]

pretty sure the answer is D from what i remember.

the hypothesis states “increased pressure should cause the kidneys to increase output of fluid.”

you have to recall that the driving force of the glomerular filtration rate is determined by hydrostatic and oncotic pressure differentials between the glomerulus and Bowman’s space. thus, this increased rate will further filter solutes into the nephron, increasing urine output.

 

[avalonisland888]

Why can't it be increased blood flow to the bladder? Wouldn't that cause increased pressure? Or is that option incorrect because it's unrelated to the system that's involved in the regulation of urine output?

 

[lumya]

The bladder isn’t involved in absorbing water so increased blood flow won’t affect it (the bladder is basically a balloon to hold urine, it doesn’t transfer ions or water in or out).

 

[avalonisland888]

Got it! Thank you!