Final answer:
Nurses must carefully change tracheostomy ties to prevent the tube from being dislodged, ensuring the patient's airway remains clear and unobstructed to avoid suffocation.
Step-by-step explanation:
Great care is taken when changing the security ties that hold a tracheostomy in place to prevent the patient from accidentally coughing out the tube, thereby impairing the airway. This could result in a compromised airway and potential suffocation. It is essential for the nurse to ensure that the new ties are securely fastened and that there is minimal disturbance to the tracheostomy tube during the process to maintain an open airway.