Most NGTs are about a few mm to1cm in diameter with a single thick radioopaque line. A gap in the line shows the position of side ports proximal to the tip. Both end and side port should be in the stomach. The most dangerous malposition is placement in the bronchus. CXR is the definitive method of ensuring correct position prior to feeding.
The chest drain is mispositioned: the side-hole of the drain lies outside the pleural cavity
Central Venous Lines
The tip of the left subclavian line lies in the thoracic duct
The tip of the subclavian line is appropriately positioned but there is a line related pneumothorax. The nasogastric tube is incorrectly placed in the hiatus hernia instead of the stomach.
Text © Gavin Joynt, June 2005; images © Charles Gomersall, June 2005
January, 2018 unless
otherwise stated. The author, editor and The Chinese University of Hong Kong
take no responsibility for any adverse event resulting from the use of this