“…For example, when changing a drainage bottle, checking for an air leak or a taking a specimen, clamping for a short time was permissible (Levels of evidence: Level 4) (Chu, ; Crawford, ; Kane et al., ; Zisis et al., ), and drains for fluid drainage can be clamped or closed to control drainage rate as necessary (Ciacca et al., ). Clamping chest tubes for transporting patients was discouraged; therefore, nurses should facilitate transport of patients with a chest tube without clamping the tube, which was recommended by several traditional reviews by researchers in Egypt (Mohammed, ), the UK (Allibone, ; Durai et al., ), Australia (Crawford, ) and Greece (Zisis et al., ). An evidence summary recommended that for pneumothorax, the tubing should not be clamped if the tube is accidentally disconnected or the drainage bottle or system is broken (The Joanna Briggs Institute ) (Grades of Recommendation: Grade A), which is inconsistent with a number of traditional reviews (Crawford, ; Durai et al., ).…”