What is the primary purpose of a chest tube, and what is a PT consideration?

What is the primary purpose of a chest tube, and what is a PT consideration?

• A. Provide humidified air to the patient; PT: reposition frequently.
• B. Drain air/fluid from pleural space to restore negative pressure; PT: drainage system upright and below insertion site, watch for bubbling, do not clamp unless directed.
• C. Deliver continuous intravenous medications; PT: monitor vitals.
• D. Support airway patency during ventilation; PT: ambulation restricted.

Answer: (B)

The main concept being tested is how a chest tube functions and what this means for physical therapy. A chest tube is used to drain air or fluid from the pleural space to re-establish negative intrapleural pressure, which lets the lung re-expand and improves breathing. In physical therapy, this dictates safe handling and positioning around the tube. The best answer highlights that the chest tube drains air or fluid to restore negative pressure, and outlines a key PT consideration: keep the drainage system upright and below the insertion site so gravity helps drainage and to prevent backflow. Also, observe the tubing and drainage for bubbling, which can indicate an ongoing air leak, and do not clamp the tube unless specifically instructed, because clamping can trap air and fluids and risk a tension pneumothorax. Why the other possibilities don’t fit: humidified air is for airways management, not chest drainage; delivering intravenous medications is an IV task, not a chest tube function; ensuring airway patency during ventilation relates to airway devices like endotracheal tubes, not chest tubes.

The main concept being tested is how a chest tube functions and what this means for physical therapy. A chest tube is used to drain air or fluid from the pleural space to re-establish negative intrapleural pressure, which lets the lung re-expand and improves breathing. In physical therapy, this dictates safe handling and positioning around the tube.

The best answer highlights that the chest tube drains air or fluid to restore negative pressure, and outlines a key PT consideration: keep the drainage system upright and below the insertion site so gravity helps drainage and to prevent backflow. Also, observe the tubing and drainage for bubbling, which can indicate an ongoing air leak, and do not clamp the tube unless specifically instructed, because clamping can trap air and fluids and risk a tension pneumothorax.

Why the other possibilities don’t fit: humidified air is for airways management, not chest drainage; delivering intravenous medications is an IV task, not a chest tube function; ensuring airway patency during ventilation relates to airway devices like endotracheal tubes, not chest tubes.