This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Primary increase in CO2 in body is seen in - 
Select and explain. 
A. Respiratory acidosis, B. Respiratory alkalosis, C. Metabolic acidosis, D. Metabolic alkalosis
A: Respiratory acidosis
Answer: A: Respiratory acidosis 
Explanation: Primary increase in CO2 in body is seen in Respiratory Acidosis 
Primary decrease or increase in bicarbonate cause metabolic acidosis or alkalosis.
	Consider this equation