Dr. Nidhi Raka on Instagram: "Invasive Ventilation • Airway secured with endotracheal tube or tracheostomy • Used in severe respiratory failure • Patient is often sedated • Higher risk of infection (VAP), airway injury • Provides complete control of ventilation • Examples: ET tube, tracheostomy ventilation Non-Invasive Ventilation (NIV) • Given through mask (face/nasal mask) • Used in mild to moderate respiratory distress • Patient is awake and cooperative • Lower risk of infection • Preserves s