A client suffering from an asthma attack is brought to the emergency department. The client's body temperature is 98.4 f, pulse rate is 110 bpm, respiratory rate is 24 shallow breaths/minute, and the blood pressure is 136/86 mm hg. Arterial blood gas values are also documented. Blood ph 7.30, partial pressure of carbon dioxide 58 mm hg, partial pressure of oxygen 88 mm hg, bicarbonate concentration 29 meq/l, oxygen saturation 88%. Which condition has the client developed?