Risk for Fluid Imbalances Flashcards
what are the 4 at risk for fluid imbalance?
infants, elderly, obese and ill
do infants or adults have a higher percentage of body water?
infants
what is more than half of body water made up of?
an extracellular compartment
who has a smaller reserve of body fluids, infants or adults?
infants
why is the daily fluid exchange greater in infants than adults?
bc of their high metabolic rate
why do infants have an inability to concentrate urine efficiently?
bc they have immature kidneys
do adults or infants have a greater fluid loss through the skin?
infants
- due to their greater SA
infants and young children have immature homeostatic regulating mechanisms, therefore do not respond as efficiently as adults to small changes in fluid balance. TRUE or FALSE
true
why are elderly especially at risk for fluid imbalance?
- aging kidneys have a drop in GFR
- decrease in ability to concentrate urine
-slower to respond to sodium an water imbalance - have a decreased response to ADH
- decrease in secretion of aldosterone
- have a reduction in total body water
is fluid intake always regulated by thirst?
no
- can also be associated with food intake
do obese ppl have a higher percentage of body water than lean ppl?
no
why are ill people at risk for fluid imbalance?
- drinking too much fluids
- losing fluids from diarrhea, vomiting, fever
why do ppl with an inflammatory response have a risk of fluid imbalance?
will experience intravascular fluid loss due to increase capillary permeability
