acid-base imbalance

Mrs. Breathless is a 45-year-old female nurse with a history of asthma. She reports to the ED in the early morning with shortness of breath, blurred vision, headache, and restlessness. After several laboratory tests, the following ABG (arterial blood gases) lab results are confirmed:  Blood pH=7.30 PaCO2 = 46 mm Hg HCO3 = 24 mEq/L.  Based on the results of her ABG, which acid-base imbalance is Mrs. Breathless likely experiencing? What is the underlying pathophysiology of this disorder? What type of compensation is likely to take place? Why do you think Mrs. Breathless developed this imbalance? What are some of the contributing factors leading to this?