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: Physiology
Kussmaul respiration occurs in response to 
Select and explain. 
A. Decrease in pH of blood, B. Increase in pH of blood, C. Obstructive pulmonary disease, D. Carbon monoxide poisoning
A: Decrease in pH of blood
Answer: A: Decrease in pH of blood 
Explanation: None