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NUR 339 ( LATEST 2024 / 2025 ) EXAM 16 | A+ RATED GUIDE | QUESTIONS AND ANSWERS (SOLVED)
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NUR 339 ( LATEST 2024 / 2025 ) EXAM 16 | A+ RATED GUIDE | QUESTIONS AND ANSWERS (SOLVED)
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NUR 339 Exam 161. Movement of solutes from area of high concentration to low concentration-
Answer
Diffusion
2. Movement of water from area of fewer solutes to more solutes
Answer
Osmosis
3. Movement of solutes from area of lower concentration to higher concentra- tion (requires
energy)
Answer
Active Transport
4. Pressure needed to oppose movement of water across membrane
Answer
Osmotic Pressure
5. Normal osmolality range
Answer
280-295 mOsm/kg
6. Tension or effect that osmotic pressure of solution with impermeable solutes exerts on cell
size due to H2O movement across the membrane
Answer
Tonic- ity
7. Osmolar concentration in 1 kg of water
Answer
Osmolality
8. Pressure pushing water out of capillary into interstitial spaces
, Answer
Capillary Filtration Pressure
9. Osmotic pressure generated my plasma proteins too large to pass through pores of capillary
wall (pulls fluid back into capillaries)
Answer
Capillary Colloidal Osmotic Pressure
10. What can cause increased capillary filtration pressure?
Answer
Increased venous pressure, capillary distention due to increased vascular volume (ex
Answer
CHF)
11. What can cause decreased capillary colloidal osmotic pressure?
Answer
De- creased # of plasma proteins due to loss/low production (liver/kidney disease, malnutrition)
12. How does ADH work?
Answer
Osmoreceptors sense increased osmolarity and stim- ulate thirst center in hypothalamus which
increases absorption of H20 and Na from kidney (causing less urine production)
13. How does the renin-angiotensin-aldosterone-system work?
Answer
Stimulated by baroreceptors (sense low blood volume), increases absorption of Na and H2O
from kidney and secretes K
14. What is 3rd spacing
Answer
Loss/Trapping of ECF in transcellular space (pericardial sac, peritoneal cavity, pleural cavity)
15. How does increased capillary permeability cause edema and 3rd spac- ing?
Answer
Damage to capillary walls or inflammation causes particles to leak into the interstitial space
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