Finals Flashcards
bicarb levels
- changes slowly
- Either excrete or retain bicarb
- begins in 12-24 hr
- completes change in 48-72
spontaneous
chest wall moves out, negative pressure is created, alveoli lengthen and widen, gas flows in
Heart rate range
60-100 beats
what does ERS stand for?
European Respiratory Society Task Force on standarization of Fuction testing
what does CMV mean?
Controlled mandatory ventilation
Goals of mechanical ventilation
- improve alveolar ventilation
- decrease PaCO2
- Increase PaO2
- improve distribution of ventilation
- aid the failing heart
IC=
IRV + VT
what does CPAP mean?
Continuous Positive Airway Pressure
what is a normal frequency for the ventilator?
8-16 /min
When RV is greater than 130%
Air trapping
severe ARDS
<100
normal valves for static compliance
60-100 cm per cm H2O
PA02-PaO2
10-15 mmhg
values widen as FIO2 increases
Gas diffusion tests are reported at
STPD
V̇e=
Vt • f
Formula for dynamic compliance
VT/PiP-PEEP
formula for static compliance
Vt/Pplat-peep
%sat=
95-100%
what does RV stand for?
Residual volume
pH range
7.35-7.45
what is the purpose of pulmonary function testing?
- chest wall disease
- Neuromuscular disease
- Disability and rehabilition
- pre/post surgury
- disease progression
indications for mechanical ventilation
- apnea
- acute ventilatory failure
- impending acute ventilatory failure
- pulmonary abnomalities
- secondary abnormalities leading to ineffective ventilation
- severe oxygenation deficit
- post operatively
complications of PEEP/CPAP
- barotrauma
- Pneumothorax
- decreased venous return
- decreased cardiac output
- decrease PaO2
What happens when mechanical deadspace increases?
- VA is decreased
- CO2 is increased
- pH is decreased