A client with a chest tube is being transferred between units. During transport, the chest tube drainage system accidentally tips over. What is the priority action?

CHEST TUBE MANAGEMENT DURING TRANSPORT: DRAINAGE SYSTEM POSITIONING: Must remain upright to maintain the water seal; the water seal prevents air from entering the pleural space; SYSTEM TIPPED: Priority is to return to upright position quickly; if water seal is disrupted (water spilled), notify RN immediately — the seal must be maintained; CLAMPING CONTROVERSY: Chest tubes should NOT be routinely clamped during transport (risk: tension pneumothorax if air is entering and tube is clamped); EXCEPTIONS: Clamp briefly only if the system must be changed, or per specific physician order; DURING TRANSPORT: Keep system below chest level; prevent pulling on the tubing; have clamps available (not applied) in case system disconnects; if tube disconnects, submerge the end in sterile water to restore water seal until replacement system can be set up; PN SCOPE: Monitor the drainage system; report changes; do not independently clamp without RN/provider direction.