Unit 10- Chapter 8 Flashcards
(49 cards)
Which of the following electrolytes is essential for the distribution of water throughout the body?
sodium
What role does phosphorus play in the body?
It is an important component in the formation of adenosine triphosphate.
The cell membrane is a ______________ bilayer, which is an important barrier to fluid movement and the acid-base balance.
phospholipid
How does lactated ringers solution help combat intracellular acidosis associated with severe blood loss?
The lactate is metabolized by the liver to form bicarbonate.
Severe hyperkalemia ( high K+ ) can result in:
hyperstimulation of neural transmission.
two or more atoms bond together to form a
molecule
positive and negative charged ions ( electrolytes ) are called
cation and anion
major cations are
sodium potassium and calcium
major anions are
bicarbonate , chlorine and phosphorus
where is k+ 98 % found and whats is main purpose
within the cell
neuromuscular function and glucose into glycogen
cellular potassium levels are regulated by
insulin
sodium / potassium pump regulated by
insulin and epinephrine
low potassium levels can lead to what
this does what
hypokalemia
decreased skeletal muscular function
GI disturbances
altered cardia function
low calcium levels can lead to what
this does what
hypocalemia
cramps throughout body, hypotension, vasoconstriction
high calcium levels lead to what
this does what
hypercalemia
weakness, lethargic, ataxia, vasodilation, hot / flushed
what is the primary buffer in all circulating fluids
sodium bicarbonate
what does chloride anion primarily regulated
pH of stomach
what is a solute and solvent
solute- dissolved particles
solvent- fluid that does the dissolving
balance across a cell membrane has two components
balance of compounds ( water / electrolytes)
balance of charges
what is a method of moving compounds to maintain imbalance of charges
active transport
sodium / potassium pump
must use ATP
what is the concentration of sodium in a solution and the movement of water in relation to the sodium levels inside or outside of a cell
tonicity
what is iso , hyper and hypotonic solutions
iso- equal- water will not shift
hyper- greater sodium concentration than cell and will draw water out
hypo- lower sodium concentration than cell, and water will move into cell
3 fluid compartments of the body
how much of total body weight is within these three compartments
inter-cellular ,
interstitial ( extracellular)
intravascular ( extracellular )
60 %
body weight of interstitial fluid alone
16 %