You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is VAT in mechanical ventilation stands for and explain in detail?
VAT (Ventilator-associated tracheobronchitis) & VAP (Ventilator-associated pneumonia) are nosocomial lower respiratory tract infections common in patients who are on the ventilator for long periods of time (Refer: Morgan and Mikhail's Clinical Anaesthesiology, 5th edition)