What is the primary purpose of administering irritants during the CRT?

The primary purpose of administering irritants during the Cough Reflex Test (CRT) is to stimulate a cough response. By introducing irritants, healthcare professionals can assess the functionality and sensitivity of the cough reflex, which helps determine if the neurological pathways and mechanical mechanisms involved in coughing are intact. This is essential for diagnosing conditions that may impair this reflex, such as neurological diseases or respiratory conditions. The effectiveness of the cough response can provide valuable insights into a patient's respiratory health and the proper functioning of protective airway mechanisms.