Fluid movement of capillary wall quiz to test your knowledge on how fluid and electrolytes transport in and out of the capillary.
Oncotic pressure (colloidal osmotic pressure) and hydrostatic pressure move fluid in opposite directions. Both are vital for ensuring fluid movements properly within the capillary and interstitial fluid.
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Fluid Movement Capillary Wall Quiz (Oncotic and Hydrostatic Pressure)
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Fluid Movement within Capillary Wall Quiz
1. Which fluid type below creates oncotic pressure?
A. Normal Saline 0.9%
B. Albumin
C. Dextrose 5% in Water
D. 0.45% Normal Saline
The answer is B: Albumin. This is a type of colloidal solution. It has large molecules that stay in the intravascular system longer, which creates oncotic pressure (also called colloidal osmotic pressure).
2. ___________ is the pressure or force of a fluid inside a restricted space.
A. Diffusion
B. Hydrostatic pressure
C. Oncotic pressure
D. Active transport
The answer is B: Hydrostatic pressure.
3. In what part of the capillary is hydrostatic pressure the highest?
A. arterial end of the capillary
B. venous end of the capillary
C. arterial beginning of the capillary
D. venous beginning of the capillary
The answer is A: arterial end of the capillary. This is where the hydrostatic pressure is the highest and as blood flow continues the pressure decreases. Hydrostatic pressure is the lowest at the venous end of the capillary.
4. What is a “pulling” force on water that is created by proteins like albumin?
A. hydrostatic pressure
B. filtration
C. oncotic pressure
D. facilitated diffusion
The answer is C: oncotic pressure.
5. When hydrostatic pressure pushes water and solutes out of the blood vessels (capillaries) into the interstitial space this is known as what process?
A. reabsorption
B. diffusion
C. osmosis
D. filtration
The answer is D: filtration.
6. True or False: Hydrostatic pressure in the blood vessels is created by the heart’s contractions.
The answer is True. Hydrostatic pressure is strongest in the arteries and decreases as it continues to the veins.
7. If a patient is experiencing hypoalbuminemia, what affect does this have on the oncotic pressure within the capillary?
A. it increases
B. it decreases
C. it remains the same
The answer is B. Hypoalbuminemia is a condition that causes low albumin in the blood. Albumin creates oncotic pressure and helps keep blood within the capillary. If low levels are found in the blood oncotic pressure will decrease.
8. True or False: Oncotic pressure pushes water from the capillary into the interstitial fluid, while hydrostatic pressure pulls water from the interstitial fluid into the capillary.
The answer is FALSE: Oncotic pressure PULLS water from the interstitial fluid to the capillary, while hydrostatic pressure PUSHES water from the capillary into the interstitial fluid.
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