Dehydrated Immediately After Exercise
Case Study #3
1. Out of the three time points, Max was the most dehydrated immediately after exercise.
2. The two parameters that can be used to determine Max’s hydration status is color and and pH. It is not specific gravity (SG) because Max’s SG is 1.035 which is within normal range. It is also not protein because in the lab manual it says that a trace amount of albumin in Max’s urine is normal.
3. If ADH levels increase, water reabsorption by the DCT/collecting ducts increases and the resulting urine excreted is concentrated.
4. Max’s ADH levels are the highest immediately after exercise. The reason for this is because the color of his urine is dark yellow. According to the lab manual, concentrated urine can be observed with a darker
urine color.
5. The time point at which Max’s kidneys secreting the most H+ is immediately after exercise. I can tell because the more H+ that is being secreted, the more pH decreases and becomes acidic.
6. One way in which angiotensin II affects blood pressure is that it results in vasoconstriction of the arterioles so that blood pressure increases and goes back to homeostasis. Another way in which angiotensin II affects blood pressure that it increases the secretion of aldosterone from the adrenal cortex. Because of this increased aldosterone, there will be an increase in Na+ and water reabsorption in the kidneys as well we increased secretion of K+ and H+ into the urine. As a result, there is an increased blood volume which increases blood pressure until it returns to homeostasis.
1. Out of the three time points, Max was the most dehydrated immediately after exercise.
2. The two parameters that can be used to determine Max’s hydration status is color and and pH. It is not specific gravity (SG) because Max’s SG is 1.035 which is within normal range. It is also not protein because in the lab manual it says that a trace amount of albumin in Max’s urine is normal.
3. If ADH levels increase, water reabsorption by the DCT/collecting ducts increases and the resulting urine excreted is concentrated.
4. Max’s ADH levels are the highest immediately after exercise. The reason for this is because the color of his urine is dark yellow. According to the lab manual, concentrated urine can be observed with a darker
urine color.
5. The time point at which Max’s kidneys secreting the most H+ is immediately after exercise. I can tell because the more H+ that is being secreted, the more pH decreases and becomes acidic.
6. One way in which angiotensin II affects blood pressure is that it results in vasoconstriction of the arterioles so that blood pressure increases and goes back to homeostasis. Another way in which angiotensin II affects blood pressure that it increases the secretion of aldosterone from the adrenal cortex. Because of this increased aldosterone, there will be an increase in Na+ and water reabsorption in the kidneys as well we increased secretion of K+ and H+ into the urine. As a result, there is an increased blood volume which increases blood pressure until it returns to homeostasis.