Unit 6 Flashcards
What is Static compliance?
Measures compliance of lung during an inspiratory hold - During NO flow
What is dynamic compliance?
Measures compliance of lung tissue during gas flow
What is the equation for static compliance?
What is the equation for COMPLIANCE?
Change in volume / Change in pressure
What is the equation for dynamic compliance?
CVP waveform photo 1
CVP waveform 2
What is the “a” wave on the CVP?
Atrial contraction
Will see a downstroke on CVP
What is the “c” wave on the CVP?
It is the tricuspid valve bulging into the RA during isovolumetric contraction of the RV
Will see an upstroke on the CVP
What is the “x” wave on the CVP?
Atrial relaxation occurs after RV ejection
Downstroke on CVP
What is the “v” wave on the CVP?
Systolic filling of the RA against a closed Tricuspid valve
Upstroke on CVP
What is the “y” wave on the CVP?
atrial emptying into the RV through a open TV
downstroke on CVP
What is a normal CVP?
2-10
CVP overall photo
What change will be seen on the CVP with afib?
Loss of a wave
What change will be seen on the CVP with AV dissociation?
Cannon a wave
What change will be seen on the CVP with tricuspid regurg?
Loss of x decent
Tall c and v waves
What change will be seen on the CVP with tricuspid stenosis?
Tall a and v waves
Minimal y descent
What change will be seen on the CVP with RV ischemia?
Tall a and v waves
M or W configuration
What change will be seen on the CVP with cardiac tamponade?
Minimal y descent
PSI of O2 tank? Number of liters?
PSI - 1900
L - 660
Which components of the gas machine are most vulnerable?
Anything in the low-pressure system
Circle breathing circuit
Flow tubes
Vaporizer manifold
Where does the low-pressure system begin?
Flowmeter tubes and ends at common gas outlet
What part of the system is the oxygen flush valve?
Intermediate - straight from pipeline