Thoracic Drainage Procedure: Chest Drain Management, Setup and Monitoring

Chest drain procedure steps: preparing the system

Before connecting the patient, check that the unit is intact, within date and the right type for the order. For a water-seal unit, fill the seal chamber to the marked line and, if suction control is water-based, set that column to the prescribed level. Confirm that every connection is tight and that tubing is not kinked, looped below the unit or compressed under the patient.

Keep the collection unit upright and below the level of the chest at all times, secure the tubing to the bed or gown with a loop that does not drag, and label the start time and baseline volume. An overview of the unit types is in our thoracic drainage system guide.

How does a chest drain work, and what to monitor

A chest drain works as a one-way path: air and fluid leave the pleural space and cannot return, because the tube end sits under water or behind a valve. Normal behaviour is a column in the seal chamber that moves with breathing, called tidaling. Bubbling in the seal chamber means air is leaving the pleural space; continuous bubbling is reported according to protocol.

At every round, check the patient first, then the system. Record the drainage volume and its colour, the water-seal level, the suction setting, the dressing at the insertion site and the security of connections. Mark the fluid level on the container with date and time so changes between shifts are visible.

• Tidaling present or absent, and whether it changes with coughing or breathing.
• Air-leak indicator: none, intermittent or continuous.
• Volume and character of drainage per shift.
• Suction source on, alarms active and battery charged for portable units.

Managing the suction source

With wall suction, the regulator sets the vacuum and the unit's own control limits it; gentle bubbling in the suction chamber is expected, and vigorous bubbling only adds noise and evaporation. With a portable electronic unit the vacuum is set on the device and shown on its display. The ATMOS S 201 Thorax, for example, controls vacuum from −5 to −100 mbar, runs on battery for up to 12 hours according to the manufacturer and shows therapy data in real time.

Before transport or mobilisation, check the battery state and keep the unit below chest level. Do not clamp a drain unless a physician has specifically ordered it, as clamping with an active air leak can be dangerous. If power or suction fails, follow your protocol for disconnection to a water seal.

Troubleshooting and chest drain removal

Common problems are kinked or blocked tubing, a loose connection, a tipped or cracked container and loss of the water seal. If the system is disconnected or damaged, protocol normally calls for re-establishing a seal immediately and informing the physician. Keep spare units, sterile water and a clamp-free kit near the bedside, and know your facility's emergency steps.

Chest drain removal is a physician or trained-staff procedure with its own protocol, including timing, dressing and follow-up imaging. Nursing teams prepare the dressing, monitor the patient and document the removal. Equipment handling should be covered in your department training, and our maintenance service can support device checks and battery replacement.

Training and support for your department

Consistent chest tube best practice depends on clear checklists and trained staff. Beckfinity can help UAE hospitals with equipment demonstrations and user training on the ATMOS drainage and suction portfolio; please reach out through our contact page.