ABG Values Flashcards
pH normal
7.35-7.45
PaO2 Normal
80-100
PaCO2 normal
35-45
HCO3 normal
22-26
pH acidic
<7.35
pH alkalosis
> 7.45
PaCO2 acidic
> 45
PaCO2 alkalosis
<35
HCO3 acidic
<22
HCO3 alkalosis
> 26
how will respiratory acidosis look on an ABG
elevated PaCo2 (acidic)
Low pH (acidic)
causes of respiratory acidosis
hypoventilation
airway obstruction
alveoli dysfunction
compensatory for metabolic alkalosis
treatment for respiratory acidosis
improving ventilation (blow off CO2)
respiratory alkalosis ABG
Low PCO2 (alkalosis)
elevated pH (alkalosis)
causes of respiratory alkalosis
hyperventilation
mechanical ventilation
compensatory for metabolic acidosis
treatment for respiratory alkalosis
correct hyperventilation
metabolic acidosis ABG value
Low HCO3 (acid)
Low pH (Acid)
causes of metabolic acidosis
consumption of HCO3
excessive loss of HCO3
renal failure
compensatory for respiratory alkalosis
treatment of metabolic acidosis
correct underlying cause
monitor electrolytes (K and CA)
metabolic alkalosis ABG values
high HCO3 (alkalosis)
High pH (alkalosis)
causes of metabolic alkalosis
gain of bas
loss of normal body acids
compensatory effort
treatment for metabolic alkalosis
correct underlying disorder
simple resp acid
not breathing enough
simp resp alk
breathing too much
simp met acid
gain of acid
loss of base
simp met alk
gain of base
loss of acid
