Resistance and Compliance concepts Flashcards
Resistance varies with what in regards to an ETT?
volume of gas passing through the tube per unit time
what is importance in determing resistance?
flow (V)
The ETT causes an increase work in breathing due to ?
small diameter and length
what law is associated with resistance and gas flow?
hagen-poiseuille
what is formula associated with laminar flow resistance?
P = (L x v x V) / r^4
True or false. In Laminar flow, Resistance indirectly proportional to flow rate
false. directly proportional
true or false. In turbulent flow, Resistance directly proportional to square of flow rate
true
what formula is associated with turbulent flow resistance
P = (L x V^2 x K)/ r^5
What is the measure of distensibility?
compliance
what is the formula for compliance?
C = V/P units are ml/cmH2O
what are properties of compliance?
Helps determine tidal volume
Most distensible components are reservoir bag & breathing tubes