homeostasis Flashcards
what percent of the body fluid is intracellular
60%
what is the primary electrolyte found in the body?
potassium
what percent of the body fluid is extracellular
40%
what are the percentages of man and woman body fluid
man=60% woman=50%
what different compartments contains interstitial and intravascular fluid
extracellular
what is hyperosmolarity?
the body has a high concentration of salt
what is hypovolemia?
the body has a high concentration of water
where is the thirst center located?
hypothalamus
what hormones help with regulating water balance?
antidiuretic
aldosterone
renin
atrial natriuretic peptide
proteins
what do antidiuretics do to the body
cause reabsorption into the circulatory system
- decreases urine output
what does aldosterone do to the body
it regulates the volume
- decreases urine output
what does renin do to the body?
vasoconstrictor
- decrease urinary output
what is atrial natriuretic peptide promote what?
promote sodium wasting
- increase urinary output!
the lack of what electrolyte makes it difficult to transport water
protein
what is the #1 sign of fluid imbalance
weight change
what are examples of cations
potassium, magnesium, sodium, calcium
(PMSC)
what are examples of anions
bicarbonate, chloride, phosphate
what are the key electrolytes to maintaining fluid balance between intracellular and extracellular spaces
sodium and albumin
what are the 3 types of IV fluids
hypertonic, isotonic, hypotonic
what is does an isotonic solution do?
the same amount of fluid is being drawn in is being drawn out
examples of isotonic solutions
D5W, NS, LR
when do you give isotonic solutions
when you need to raise BP, due to volume deficit
what is hypotonic solutions
when water is being drawn into the cells
CELL SWELL
examples of hypotonic soultion
1/2 NS and 1/4 NS
when are hypotonic solutions given
dehydration
when do you not give hypotonic solutions
ICP, burn pt, trauma pt