Oxygentation and ventilation Flashcards
inadequate level of tissue oxygenatoin for cellular metabolism
hypoxia
abnormally low atrerial oxygen tension pao2 in the blood
hypoxemix
patient with hypoventilation what should be the first thing to do
treat underlying cause
obesity hypoventilation syndrome can cause what respiratory issue
hypoventilation
human body wil try to restrict perfusion in areas of lungs with reduced ventilation which will divert o2 to well ventilate lung regions is clal; this is best for what situation
hypoxic pulmonary vasoconstriction
useful for V/Q mismatch
Treatmetn for VQ mismatch
start low and slow O2 and treat underlying cause
treatment for pulmonary shuntin
peep, lasix, abx (pneumonia)
normal minue ventilation
6-8L/min
hypercapnia pco2
greater than 45
what is one ventilatoin level that is important to identify in acute care
pco2
reasons for intubation/vent
airway protection
what is normal tidal volume
6-8ml/kg(Ideal body weight)
what is normal peep what does it do
5-10
stents open airway and aveoli
greater pressure decrease blood pressure due to thoracic pressure
what is normal pressure support, when is it used
5-15
pressure added on top of PEEP during inspiration (used to overocme resistance of endotracheal tube)
what orders should be set for volume control/assist control
Fio2
tidal volume (ideal body )
RR
PEEP (5-10)
SIMV difference from VC/AC
Patient chooses own volume and pressure support
Orders that should be set for Pressure support or bipap
fio2 pressure support and peep dont set volume
Pressure on inspiration
pressure support /ipap (non invasive)
pressure on expiration
peep/epap (noninvaiso)
what settings are ordered for CPAP
fio2 peep Or cpap
What should be watched to prevent pressue elevatoins using VC/AC or SIMV
Peak pressure- the initial pressure of volume delivery to the lungs
• Goal < 40
• Reflects resistance from pt’s airways, ETT, and vent tubing
• Kink in tubing, pt biting ETT, secretions, mainstem bronchus intubation, bronchospasm
Bucking vent releases sytokines causing organ damage is called
biotrauma
Inflammation and agitation from opening and closing of alveoli.
atelectrauma
Patient on vent can cause what changes to ph
cuase respiratory alkalosis
