respiratory failure Flashcards
definition of respiratory failure (2)
- lung fails to oxygenate arterial blood
2. lung fails to prevent retention of CO2
typical causes of acute ventilatory failure
drug OD
typical causes of acute oxygenation failure
pneumonia
typical causes of chronic ventilatory failure
neuromuscular disease
typical causes of chronic oxygenation failuer
pulm fibrosis
what is hypoxic respiratory fialure
pAO2 under 60
what is hypercapnotic?
pCO2 >50
hypoxic respiratory failure is AKA______
type 1 ARF
hypercapnic respiratory failure is AKA type____ARF
type 2 ARF
what is the Primary reason that ppl get hypoxic?
V/Q mismatch
what is the best tool for assessment of respiratory failure?
H&P
what is the goal in support of respiratory failure
provide adequate O2 delivery to tissues
what should you aim to keep the hgb above?
> 7 (unless bleeding)
goal lactic acid level?
under 4
what is ventilatory failure?
hypercapnic respiratory failure
give examples of things that can incr CO2 production?
sepsis, fever, burns, trauma, seizures
acute: for every rise of CO2 level by 10, pH decreases by ____
0.8
acute: for every decline of CO2 level by 10, pH increases by ____
0.8
chronic: for every rise of CO2 level by 10, pH decreases by ____
0.3
signs of chronic respiratory failure
polycythemia, elevated CO2, normal pH w/ elevaetd PaCO2, elevated bicarb, clubbing
T or F: O2 tx improves survival
true
T or F: O2 tx improves exercise tolerance
true
T or F: O2 tx improves lung fxn
false
T or F: O2 tx improves survival in those with moderate hypoxemia or nocturnal hypoxemia
false
in order to qualify for O2 tx, a person must have a PaO2 under____ or SaO2 under_____
55 mmHG, 88%
a person can qualify for O2 tx with PaO2 56-59 with evidence of (#)?
- ecg - cor pulmonale
- pedal edema
- secondary erythrocytosis
