Medical illustration showing manual percussion and postural drainage on a patient and a patient using an oscillatory PEP device.

"Medical illustration, diagram style, of chest physiotherapy techniques for an unconscious adult patient in a hospital bed. Clean, white background. The scene is split into two panels. **Left Panel (Manual Technique):** A respiratory therapist is performing **postural drainage and percussion** on a patient. The patient is positioned in a side-lying pose, slightly tilted head-down. The therapist is using a cupped hand to percuss the patient's back over the lower lung region. Arrows indicate the rhythmic, bouncing motion of the percussion. The therapist's technique is shown as precise and controlled. **Right Panel (Device Technique):** The same patient is now shown using an **oscillatory PEP device** (e.g., a Flutter or Acapella). The patient has the device held to their mouth by a nurse or therapist. A dotted line shows the path of air from the lungs into the device. A small, visible mist is inside the device's chamber. The patient's chest is shown with gentle vibration lines to indicate the oscillations. Label the two techniques: "Manual Percussion & Postural Drainage" and "Oscillatory PEP Device". Use a professional medical aesthetic with light blue and gray colors. The mood is educational and clinical. See more