Acid Base Flashcards
ABG draw from
radial artery
after draw, hold pressure, pink/warm hand, ice
if on hemodialysis
don’t draw from that arm! (or friend the hemodialysis nurse)
use femoral
if bilateral mastectomy or bilateral arm amputee
Metabolic
HCO3 (22-24)
Respiratory
PaCO2 (35-45)
partial compensation
look at pH: pH still not normal
full compensation
pH back to normal
7.35-7.44
acidodic (compensation)
7.4
normal
7.41-7.45
alkalotic (compensation)
respiratory compensation
metabolic opposite
metabolic compensates
respiratory opposite
respiratory acidosis
breathing slowing down
Causes: COPD, overdose, pnuemonia, atelectasis,
CO2 retention
S/Sx: drowsy, confused, headache, coma, hypotension, warm/flushed skin, seizures, hypoventilation, VF (hyperkalemia)
respiratory alkalosis
breathing increases
dizzy, light-headed, tachycardia, dysrhythmias (hypokalemia), N/V/epigastric pain, tetany, numbness, tingling, hyperreflexia, seizures, hyperventilation
how to tell if compensated
pH back in “normal” range but still one or the other
whichever CO2 or HCO3 is furthest out of range is the problem, the other will be out of range to compensate