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Please answer the following in complete sentences. David has noticed that both t

ID: 3518653 • Letter: P

Question

Please answer the following in complete sentences. David has noticed that both the volume and color of his urine varies day to day as well as with the time of day. Help David understand the following observations. (4 points each) 1. When David gets up in the morming and voids after an overnight sleep, he notices his urine is darker in color and smaller in volume than at most other times of the day. What is the reason for the dark color and smaller volume? 2. David has discovered that after having a couple of beers with friends on a Saturday night, he often has to void a significant volume of urine, more than the volume of the beers he consumed. He also finds that come Sunday morning he is quite thirsty. Give David the physiological explanation for both observations. increased urine volume- increased thirst - 3. David has noticed that while strenuously working out at the gym, and for a while afterwards, he rarely has to void. Explain to David why this is the case. + 100

Explanation / Answer

1 . Because of fluid deprivation, kiney excretes less amount of water to maintain cell turgor pressure so surine has became concentrated and led to dark coloured urine and smaller volume. It is important that David should take ample amount of water to avoid dehydration and chances of ureteric stones.

2. As David has consumed lots of fluid in form of beer, it led to load on kidney and to maintain intracellular fluid, kidney excretes large amount of fluids which is light coloured.

3. In gym there is lots of fluid loss in form of sweating and through lungs in form of water vapours so it leads to fluid retention and less urine out put. Again it is important that David should consume lots of fluids to avoid dehydration.