Which of the following is true regarding plasma colloid osmotic pressure?
A)It is less than interstitial colloid osmotic pressure
B)It decreases by 50% in the muscle capillaries as blood flows from the arteriole end to the venous end
C)It is primarily caused by the presence of substances in the plasma such as sodium and potassium
D)It increases in response to an increase in plasma albumin concentration

Question

Quizplus · Accepted Answer

Plasma colloid osmotic pressure is primarily caused by the presence of large plasma proteins, such as albumin. An increase in plasma albumin concentration would therefore increase the plasma colloid osmotic pressure. Choice A is incorrect as plasma colloid osmotic pressure is greater than interstitial colloid osmotic pressure. Choice B is incorrect as the plasma colloid osmotic pressure remains constant along the length of the capillary. Choice C is incorrect as the presence of small ions like sodium and potassium do not significantly contribute to the colloid osmotic pressure of plasma.

Which of the Following Is True Regarding Plasma Colloid Osmotic