UNIT 2 Flashcards
(39 cards)
what follows water always
Sodium
What is Hydrostatic pressure
water being pushed out by some force
what is osmatic pressure
fluid moving from an area of high concentration to an area of low concentrationion
what happens when there’s too much water in the blood vessels
fluid gets pushed out causing edema in tissues
what happens if there are too many particles in the plasma
water is sucked into the blood vessel, causing BP to elevate
where do you find Hydrostatic pressure
in the capillary bed
What causes an increase in Hydrostatic pressure
Venous Obstruction and salt and water retention
What is venous obstruction
an obstruction not allowing fluid to move properly
Colloidal osmatic pressure
osmotic pressure exerted by large molecules
Lymph Drainage
fluid is returned to the circulatory system. (anything too large go to the lymph drainage)
What is an edema
accumulation of fluid in ECF space.
what are some physiological mechanisms of edema’s
- anything that increases capillary filtration pressure
- Anything that decreases colloidal pressure
- anything that increase permeability allowing more fluid to move back and forth
effects of edemas on body function
determined by location of the edema
what is Lymphedema
edema due to impaired lymph flow (Obstruction of lymph flow)
some causes of Lymphedema
cancer, surgery, parasites, bruises, etc
are edemas chronic or acute
Both depending on the situation
Whats a 1 in testing for edema
barely there
whats a 2 in testing for edema
significantly present
whats a 3 in testing for edema
very significant
whats a 4 in testing for edema
1.5-2.0 times normal size
when measuring weight for patients with edema what should you make sure happens
that its the same time each day and they are wearing the same clothes (if they were wearing a johnny before, make sure they wear it again)
why can thrombophlebitis cause edemas
blood cant flow past it
what is thrombophlebitis
blood clots
what is generalized anasarca
edema throughout the body
