NURS 210 Exam 3: Fluids and Electrolytes
Questions and Answers 100% Solved
Forces of fluid from the interstitial compartment INTO the capillaries (inter-vascular space)
Capillary-osmotic pressure (pulling into cap)
Interstitial fluid-hydrostatic pressure (pushing into capillary)
Forces of fluid from the capillaries (inter-vascular) into the interstitial space Capillary-
hydrostatic pressure pushes fluid out of the capillary wall
Interstitial-osmotic pressure pulls particles inward in the interstitial space
Capillary hydrostatic pressure Forces fluids out of capillaries into the interstitial
(interstitial)
The pushing force exerted by water in the blood stream caused by the heart's PULSATILE
PUMPING ACTION
,Colloid osmotic pressure Exerted by the solutes in the bloodstream- mainly SODIUM ions
and plasma PROTEINS
Oncotic/colloid pressure refers to the forces exerted specifically by ALBUMIN
Interstitial fluid hydrostatic pressure Forces fluid from the interstitial into the capillaries
Interstitial fluid osmotic pressure Draws fluid back out of capillaries into the interstitial
space
Venous Pulling forces of colloid osmotic pressure (COP) results in fluid reabsorption into
vascular compartment
Arterial Pushes fluid toward the cell (hydrostatic)
Fluid homeostasis The distribution of fluid between the interstitial and intracellular
compartments occurs by OSMOSIS, rather than filtration
, Dependent on B/P to perfuse kidneys in order to maintain GFR (indication of kidney function)
Controlled by the antidiuretic hormone (ADH), aldosterone and natriuretic peptides
ADH Synthesized in the hypothalamus and released by the posterior pituitary
Increased release with INCREASED OSMOLALITY (hypernatremia)
Increased release with DECREASED BLOOD VOLUME
Causes water reabsorption
Decreases urine amount
Increases urine concentration
High plasma osmolarity stimulates the hypothalamus which stimulates thirst and promotes the
release of ADH (retain water)
Aldosterone Secreted by the adrenal cortex
Questions and Answers 100% Solved
Forces of fluid from the interstitial compartment INTO the capillaries (inter-vascular space)
Capillary-osmotic pressure (pulling into cap)
Interstitial fluid-hydrostatic pressure (pushing into capillary)
Forces of fluid from the capillaries (inter-vascular) into the interstitial space Capillary-
hydrostatic pressure pushes fluid out of the capillary wall
Interstitial-osmotic pressure pulls particles inward in the interstitial space
Capillary hydrostatic pressure Forces fluids out of capillaries into the interstitial
(interstitial)
The pushing force exerted by water in the blood stream caused by the heart's PULSATILE
PUMPING ACTION
,Colloid osmotic pressure Exerted by the solutes in the bloodstream- mainly SODIUM ions
and plasma PROTEINS
Oncotic/colloid pressure refers to the forces exerted specifically by ALBUMIN
Interstitial fluid hydrostatic pressure Forces fluid from the interstitial into the capillaries
Interstitial fluid osmotic pressure Draws fluid back out of capillaries into the interstitial
space
Venous Pulling forces of colloid osmotic pressure (COP) results in fluid reabsorption into
vascular compartment
Arterial Pushes fluid toward the cell (hydrostatic)
Fluid homeostasis The distribution of fluid between the interstitial and intracellular
compartments occurs by OSMOSIS, rather than filtration
, Dependent on B/P to perfuse kidneys in order to maintain GFR (indication of kidney function)
Controlled by the antidiuretic hormone (ADH), aldosterone and natriuretic peptides
ADH Synthesized in the hypothalamus and released by the posterior pituitary
Increased release with INCREASED OSMOLALITY (hypernatremia)
Increased release with DECREASED BLOOD VOLUME
Causes water reabsorption
Decreases urine amount
Increases urine concentration
High plasma osmolarity stimulates the hypothalamus which stimulates thirst and promotes the
release of ADH (retain water)
Aldosterone Secreted by the adrenal cortex
