PHYS Renal Physiology, Water Balance & Body Fluids Workshop - Week 10

Question 1

10min post drinking 1.5L water, ECF volume will ____ and osmolarity will ____
ICF volume will ___ and osmolarity will ___

Answer 1

Increase. Decreased. Not change. Not change.

Question 2

60min post drinking 1.5L water, ECF volume will ____ and osmolarity will ____
ICF volume will ___ and osmolarity will ___

Answer 2

Increase. Decrease. Increase. Decrease.

Question 3

Compared to 10mins post drinking 1.5L water, ECF volume will ____ and osmolarity will ____
ICF volume will ___ and osmolarity will ___

Answer 3

Decrease. Increase. Increase. Decrease.

Question 4

2hrs post 0.3mol NaCl w/out H2O, ECF volume will ___ and osmolarity will ___
ICF volume will ___ and osmolarity will ___

Answer 4

Not change. Increase. Not change. Not change.

Question 5

24hrs post 0.3mol NaCl w/out H2O, ECF volume will ___ and osmolarity will ___
ICF volume will ___ and osmolarity will ___

Answer 5

Increase. Increase. Decrease. Increase.

Question 6

Compared to 2hrs post NaCl, at 24hrs ECF volume will ___ and osmolarity will ___
ICF volume will ___ and osmolarity will ___

Answer 6

Increase. Decrease. Decrease. Increase.

Question 7

Formula for osmolarity

Answer 7

Solute particles (Osmol)/osmoles OR H2O (L)

Question 8

Decrease pressure natriuresis feedback loop: Increased Na+ intake -> Na+ & H2O retention -> ___ ECF & blood/plasm volume -> ___ CO -> ___ MAP -> ___ excretion Na+ & H2O -> ___ plasma volume & MAP.

Answer 8

Increased. Increased. Increased. Increased. Decreased.

Question 9

ACE inhibitor has what affect on CO, MAP, aldosterone secretion, water & salt re-uptake/reabsorption, vaso___, ADH secretion.

Answer 9

Reduced. Reduced. Decreased. Decreased. Vasodilation. Decreased.