We should remember the following things first.
Normal pH- 7.35-7.45
If HCO3 Decreased- Acidosis
If PCO2 increased- Respiratory
Question: A 20 year old girl presents with pain abdomen, vomitings and fever. Her blood glucose is 350mg/dl, pH is 7.2, HCO3 -7.6
What is the likely diagnosis?
METABOLIC ACIDOSIS-DIABETIC KETOACIDOSIS
Question :A 55 year smoker presents to emergency with breathlessness and altered sensorium. His ABG analysis showed pH of 7.25, PCO2 of 65 and HCO3 of 35.What is your likely diagnosis?
Ans: Respiratory Acidosis with compensatory metabolic alkalosis
Question :A 20 year old patient presents with ghabrahat, anxiety and hyperventilation. His ABG analysis showed pH-7.5,PCO2- 27 and PO2 of 87.What is the likely diagnosis?