Acid Base Calculation Made Easy !
Posted by Ash from IP 188.8.131.52 on October 12, 2006 at 17:50:13: 6 steps to ABG analysis, go step by step in the very same order:- 1.Chk whether the pt is academic or alkalemic,by looking at the arterial pH (NL = 7.38 7.42) 2. Chk whether the ABG abnormality is due to a primary repiratory or metabolic disorder by chking the PCo2 levels( NL 38-42) and HCO3 levels (NL 22-26) 3. Now if there is respiratory component identified,chk whether this is acute or chronic respiratory acidosis or alkalosis. 4. Now if u identify a metabolic component ,chk whether it is high anion or normal anion gap M.Acidosis 5. Chk wether the respiratory system is adequetly compensating for this primary metabolic disorder. 6. Now u identify a high anion gap M.A,chk the corrected HCO3 level,y we do this coz to know wether there was a intial primary disorder ,before this new metabolic disorder developed. VERY IMPO FORMULAS :- U have to learn the formulas byheart) In Metabolic acidosis pH and HCO3 (DECREASES) So to compensate for every 1 mmol/l of drop in HCO3 , 1.2mmhg of PCO2 shld decrease So to compensate for every 1 mmol/l of increase HCO3, 0.07 mmhg of pco2 will increase. In Resp .Acidosis (PH - DECREAS Continue reading >>