Answer :
Final answer:
Mechanical ventilation is indicated in severe respiratory failure, toxic inhalation can cause lung injury, risk factors for infectious diseases include weakened immune system, and there are contraindications for bronchoscopy.
Explanation:
Indications for mechanical ventilation include severe respiratory failure, acute exacerbations of chronic lung diseases (such as asthma or chronic obstructive pulmonary disease), and postoperative care. Mechanical ventilation is used to assist or replace the function of the respiratory system when the patient is unable to breathe adequately on their own.
Toxic inhalation can have various effects on the body depending on the specific substance involved. For example, inhalation of toxic chemicals or gases can cause lung injury, respiratory distress, and damage to other organs. Some examples of toxic inhalants include smoke from fires, chemical fumes, and asbestos fibers.
Risk factors for infectious diseases include weakened immune system, exposure to pathogens, poor hygiene practices, crowded living conditions, and certain medical conditions. These factors can increase the likelihood of contracting and spreading infectious diseases, such as respiratory infections, pneumonia, and tuberculosis.
Contraindications for bronchoscopy include uncontrolled bleeding disorders, unstable cardiovascular status, severe respiratory distress, and certain anatomical abnormalities. It is important to assess the patient's overall health condition and potential risks before performing a bronchoscopy procedure.