Arterial Blood Gas Analysis Flashcards
what is normal pH?
7.35 - 7.45
what is normal PaCO2?
35 - 45
what is normal HCO3-?
22-26
what is normal PaO2?
75-100
if pH and PaCO2 are moving in opposite directions, is it respiratory or metabolic?
respiratory
if pH and HCO3- are moving in same directions, is it respiratory or metabolic?
metabolic
respiratory acidosis vitals move in which directions?
pH down, PaCO2 up, HCO3- normal
respiratory alkalosis vitals move in which directions?
pH up, PaCO2 down, HCO3- normal
metabolic acidosis vitals move in which directions?
pH down, PaCO2 normal, HCO3- down
metabolic alkalosis vitals move in which directions?
pH up, PaCO2 normal, HCO3- up
what indicates an uncompensated ABG?
when acid-base disorder is uncompensated or partially compensated, pH remainds outside normal range.
what indicates an uncompensated ABG?
in fully compensated states, pH has returned to normal even if other values are abnormal
if pH is low, and PaCO2 + HCO3- are both high, what does that indicate?
respiratory acidosis w/ partial renal compensation
what is normal oxygenation?
80-100mmHg / >95%
what is mild hypoxemia?
60-79mmHg / 90-94%
