HomeAIIMSABG Interpretation In 4 Easy Steps ABG Interpretation In 4 Easy Steps By EduMed AIIMS, CLINICAL, NEET PG 0 Comments ABGs (Arterial Blood Gases) Interpretation In 4 Easy Steps First of All, You Should Know Few Normal Values – pH = 7.35 – 7.45 [ Perfect pH = 7.40 ] pCO₂ = 35 – 45 [ CO₂ = Acid ] HCO₃ = 22 – 26 [ HCO₃ = alkali ] pO₂ = 80 – 100 Now Interpretation of ABGs In 4 Easy Steps- 1. Label The pH < 7.40 → Acidosis > 7.40 → Alkalosis 2. Look At The pCO₂ & HCO₃ High pCO₂ → Respiratory Acidosis Low pCO₂ → Respiratory Alkalosis High HCO₃ → Metabolic Alkalosis Low HCO₃ → Metabolic Acidosis 3. Look At The pCO₂ & HCO₃ together as a pair BOTH ARE OUTSIDE THE NORMAL RANGE & MOVING IN THE SAME DIRECTION : COMPENSATION pH = 7.35 – 7.45 → Fully Compensated pH = Not in Normal range → Partially Compensated 4. Look at the pO₂ < 80 → Hypoxia Q. A 57 year smoker presents to emergency with breathlessness and altered sensorium. His ABG analysis shows pH of 7.26 , pCO₂of 68 and HCO₃ of 35. (a) Metabolic Acidosis (b) Respiratory Acidosis (c) Compensated Metabolic Acidosis (d) Respiratory Acidosis with compensatory Metabolic Alkalosis Ans. (d) Respiratory Acidosis with compensatory Metabolic Alkalosis Click Here to Download Handwritten Notes for NEET PG/ DNB/ AIIMS PG and Other Medical PG Entrance Preparation Thank you Reader Please Like and Share this post. LIKE Our Facebook Page to get latest updates. Contact us @ edumedwebstore[at]gmail.com if you have any queries. Related Posts High Yield Topics of Psychiatry Breath Sounds Intravenous fluid therapy About Author EduMed Add a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment:*Name:* Email Address:* Website: Save my name, email, and website in this browser for the next time I comment.