What are characteristics of stage 4 status asthmaticus?

Updated: Jun 17, 2020
  • Author: Constantine K Saadeh, MD; Chief Editor: John J Oppenheimer, MD  more...
  • Print
Answer

This is a very serious stage in which the PO2 is low and the PCO2 is high, signifying respiratory failure. These patients have less than 20% of predicted lung function or FEV1 and require intubation and mechanical ventilation.

Patients in stage 4 should be admitted to an ICU. Switching from inhaled beta2-agonists and anticholinergics to metered-dose inhalers (MDIs) via mechanical ventilator tubing is indicated. Parenteral corticosteroids are essential, and theophylline may be added, as with patients in stage 3.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!