status asthmaticus

Most asthma attacks back down when someone uses their reliever inhaler. Status asthmaticus is the frightening exception: a severe attack that keeps tightening despite repeated reliever doses and standard treatment, leaving the person fighting harder and harder for each breath.

Status asthmaticus is a severe, prolonged asthma exacerbation that does not respond to initial bronchodilator and corticosteroid therapy and threatens respiratory failure. Marked airway narrowing, mucus plugging, and air trapping make exhalation extremely difficult; the breathing muscles tire, and oxygen falls while carbon dioxide — which usually drops early in an attack — may rise as the lungs fail to clear it.

It is a medical emergency requiring intensive treatment: high-dose inhaled bronchodilators, systemic corticosteroids, oxygen, and sometimes intravenous medications, with close monitoring for the need for ventilatory support. Crucial warning signs include exhaustion, drowsiness, an inability to speak in full sentences, a silent chest, and a rising or normalising carbon dioxide level in someone who is still struggling.