pH is 7.2, pO2 is 46, pCO2 of 80 are indicative of

Type 2 respiratory failure paco2 increases ,pao2 decrease. An asthma exacerbation is an acute or subacute episode of progressive worsening of symptoms of asthma, including shoness of breath, wheezing, cough, and chest tightness. Exacerbations are marked by decreases from baseline in objective measures of pulmonary function, such as peak expiratory flow rate and FEV1 . Ref Davidson edition23rd pg 573