NUR 339 Final Exam 3 Questions and
All Correct 2025-2026 Updated.
Sodium (Na) - Answer 135-145 mEq/L
Potassium (K) - Answer 3.5-5.0 mEq/L
Calcium (Ca) - Answer ~10 mgs/dl
Magnesium - Answer 1.5-2.5 mEq/L
Phosphorus - Answer 2.5-4.5 mgs/dL
BUN - Answer 5-25 mgs/dl
Serum Creatinine - Answer 0.5-1.5 mgs/dl
Creatinine Clearance - Answer 1-2 mgs/dl
Serum Osmolality (KNOW) - Answer 280-295 mOsm/kg
Urine SG - Answer 1.005-1.050
pH - Answer 7.35-7.45
pCO2 - Answer 35-45 mmHg
HCO3 - Answer 22-26 mmHg
What percent of the body's H20 is made of ECF? - Answer 30% of total body H2O
, How much of the total body H20 is from ICF? - Answer 70%
Fluid components of ECF? - Answer large amounts of Na and CL and small amounts of K, Mg,
Ca, and phosphate
Fluid components of ICF? - Answer large amounts of K and small amounts of CA, Na, Cl, bicarb,
Mg, and phosphate
What is diffusion? - Answer -random movement of particles from higher concentration to area
of lower concentration
-if one side of the membrane has a higher solute concentration than the other side. The body
again seeks to restore balance through redistribution of electrolytes
-electrolytes will move from hypertonic to hypotonic side until isotonic relationship is
established
-movement direction in diffusion is opposite that in osmosis
What is osmosis? - Answer movement of water from area of more water (fewer solutes to less
water (more solutes)
What is osmolality? - Answer osmolar concentration in 1 kg of water
What is osmolality determined by? - Answer sodium level
What is tonicity? - Answer tension or effect that osmotic pressure of solution with
impermeable solutes exerts on cell size because of H20 movement across the cell membrane
What is active transport? - Answer movement of solutes from area of lower concentration to
higher concentration-requires energy
What causes the renin-angiotesin-aldeosterone system to activate? - Answer baroreceptors
sense low blood volume
What triggers ADH release? - Answer Osmoreceptors sense increased osmolarity
All Correct 2025-2026 Updated.
Sodium (Na) - Answer 135-145 mEq/L
Potassium (K) - Answer 3.5-5.0 mEq/L
Calcium (Ca) - Answer ~10 mgs/dl
Magnesium - Answer 1.5-2.5 mEq/L
Phosphorus - Answer 2.5-4.5 mgs/dL
BUN - Answer 5-25 mgs/dl
Serum Creatinine - Answer 0.5-1.5 mgs/dl
Creatinine Clearance - Answer 1-2 mgs/dl
Serum Osmolality (KNOW) - Answer 280-295 mOsm/kg
Urine SG - Answer 1.005-1.050
pH - Answer 7.35-7.45
pCO2 - Answer 35-45 mmHg
HCO3 - Answer 22-26 mmHg
What percent of the body's H20 is made of ECF? - Answer 30% of total body H2O
, How much of the total body H20 is from ICF? - Answer 70%
Fluid components of ECF? - Answer large amounts of Na and CL and small amounts of K, Mg,
Ca, and phosphate
Fluid components of ICF? - Answer large amounts of K and small amounts of CA, Na, Cl, bicarb,
Mg, and phosphate
What is diffusion? - Answer -random movement of particles from higher concentration to area
of lower concentration
-if one side of the membrane has a higher solute concentration than the other side. The body
again seeks to restore balance through redistribution of electrolytes
-electrolytes will move from hypertonic to hypotonic side until isotonic relationship is
established
-movement direction in diffusion is opposite that in osmosis
What is osmosis? - Answer movement of water from area of more water (fewer solutes to less
water (more solutes)
What is osmolality? - Answer osmolar concentration in 1 kg of water
What is osmolality determined by? - Answer sodium level
What is tonicity? - Answer tension or effect that osmotic pressure of solution with
impermeable solutes exerts on cell size because of H20 movement across the cell membrane
What is active transport? - Answer movement of solutes from area of lower concentration to
higher concentration-requires energy
What causes the renin-angiotesin-aldeosterone system to activate? - Answer baroreceptors
sense low blood volume
What triggers ADH release? - Answer Osmoreceptors sense increased osmolarity
