text: <unk>  is an medical emergency caused by an acute exacerbation of asthma that does not respond to standard bronchodilator and corticosteroid therapy. Symptoms include chest tightness, rapidly progressive dyspnea, non-productive cough and wheezing.<unk>  if left untreated may result in severe bronchospasm, mucus plugging and rapidly develops acidosis and respiratory failure as a consequent of carbon dioxide retention and hypoxemia.
option_0: Status asthmaticus
option_1: Nocturnal asthma
option_2: Foreign accent syndrome
option_3: Sleep apnea
option_4: Motion sickness
option_5: Exercise induced asthma
option_6: Smoker's cough
option_7: Anaphylaxis