NUR 304 Test 4
- Intracellular fluid
Answer (ICF) fluid within cells
- Extracellular fluid
Answer (ECF) fluid outside of the cell
- Interstitial fluid
Answer (ISF) fluid between cells
- What term is used for clinical concentration?
Answer osmolality
- Osmosis
Answer water from an area of lower particle concentration to an area of higher particle concentration
- Diffusion
Answer Movement of molecules from an area of higher particle concentration to an area of lower particle concentration
- Tonicity
Answer amount of solutes in solution compared with the bloodstream 1 / 2
- Isotonic
Answer equal tonicity as blood (ex. normal saline 0.9% NACL)
- Hypotonic
Answer fewer particles and more water than blood
- Hypertonic
Answer more particles and less water than blood
- Osmoreceptors
Answer initiate thirst mechanism and ADH release
12. ADH
Answer antidiuretic hormone (vasopressin), stimulates kidneys to reabsorb more water
13. RAAS
Answer renin-angiotensin-aldosterone system, activated by hypotension, hypo- volemia, low cardiac output
- Steps of RAAS
- renin converts angiotensinogen into angiotensin I
Answer
- angiotensin I is converted to angiotensin II by ACE
- angiotensin II is a vasoconstrictor, stimulating release of aldosterone
- aldosterone increases sodium and water reabsorption, potassium excretion from kidneys
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