The Archaic is one of five periods that Ancient Greek history can be divided into; it was preceded by the Dark Ages and followed by the Classical period. The Archaic period saw advancements in political theory, especially the beginnings of democracy, as well as in culture and art.
An NG Tube Is Sometimes Used In Patients Who Have IBD. A nasogastric tube is inserted through the nostrils and down the throat into the stomach. This tube can be used to put substances into the stomach, or take them out. Image Â© LEONELLO CALVETTI / Science Photo Library / Getty Images.
The use of a nasogastric tube is suitable for enteral feeding for up to six weeks. Polyurethane or silicone feeding tubes are unaffected by gastric acid and can therefore remain in the stomach for a longer period than PVC tubes, which can only be used for up to two weeks.