Final answer:
Sudden deterioration after intubation can be caused by infections, collapsed lung, and complications from anesthesia.
Step-by-step explanation:
Sudden deterioration after intubation can occur due to various factors. One possible cause is an infection introduced during the intubation process or through contaminated medical equipment. This can lead to rapid spreading myonecrosis, edema, and septic shock. Another potential cause is a collapsed lung, known as spontaneous pneumothorax, which can occur due to abnormalities in connective tissue. Additionally, complications from anesthesia such as relaxation of the tongue and partial or complete blockage of the airway can also contribute to sudden deterioration.