Dilute urine is produced when decreased levels of______ are secreted:

a. aldosterone

b. atrial natriuretic peptide

c. ADH

d. none of the above

Video transcript

Hi, everybody. Our next question says, what would be the primary characteristic of urine produced by the kidneys in the absence of A DH A concentrated B dilute C acidic or D alkaline. So let's just recall what A DH is and what it does. It's antidiuretic hormone. And this can help you remember its function. A diuretic increases output. So this is an anti diuretic. It causes the kidneys to retain more water. And if the kidneys are retaining more water than the urine is more concentrated. But then of course, be careful recall the questions asking what happens in the absence of a DH. So if a DH causes the urine to be more concentrated, then in the absence of a DH, our answer will be choice B dilute. So the urine will be more dilute in that case. So choice a concentrated is incorrect since that would be the effect of the presence of A DH. And then choices C and D acidic and alkaline would be incorrect because this has to do with the systems that regulate Ph and ion balance, which is not regulated by A DH. So again, in the primary characteristic of urine produced by the kidneys in the absence of the anti diuretic hormone is choice b dilute. See you in the next video.