IV Fluids Flashcards
1
Q
What is the total body water? What are the components?
A
T= 60% of total body weight
I= intracellular 40% E= extracellular 20%
2
Q
What age group has highest water%?
lowest?
A
infants
elderly
3
Q
Does someone who is obese have more or less body water than someone who is not obese?
A
less!
fat contains almost no water
4
Q
What is steady state in regards to fluid input/output?
A
input= output
5
Q
Causes of hypovolemia
A
- gi losses
- renal losses (diuretic, water loss in diabetes)
- skin loss- sweat, burn
- pancreatitis, rhabdo
6
Q
Clinical features of hypovolemia
A
- increased thirst, decreased sweating
- decreased skin turgor
- oliguria
- cns depression
- weakness, muscle cramps
- decreased BP; postural htn/dizziness
7
Q
What is third spacing?
A
fluid accumulation in the interstitial of tissues= EDEMA
8
Q
What can third spacing cause?
A
relative hypovolemia
