Sheila has been exercising at peak performance for about 60 minutes. she did not hydrate as effectively as she should have and as a result, her urine is deep yellow and low in volume. which of the following is the most likely mechanism affecting this?
a. net filtration pressure
b. capsular colloid osmotic pressure
c. glomerular hydrostatic pressure
d. blood colloid osmotic pressure

d. blood colloid osmotic pressure  

Explanation:

The colloid osmotic pressure is a kind of pressure that is induced by the proteins on the blood vessel's plasma. This process results in displacement of the water molecules thus results in the urine that is relatively deficit of water molecules. This pressure has a opposing effect on the hydrostatic blood pressure which pushes the water and small molecules out of the blood inside the interstitial spaces that is within the arterial end of the capillaries.

The colloid osmotic pressure is caused by the albumin protein thus imparts deep yellow color to the urine.

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