<unk>  is undertaken either by having the patient drink the solution or a nasogastric tube is inserted and the solution is delivered down the tube into the stomach. When administered to adolescents and adults as preparation for surgery, colonoscopy, or another procedure, the solution is usually taken orally, unless oral administration is contraindicated. Orally, the solution may be taken in a wide variety of settings, and is usually taken at a rate of 240 mL (8 oz.) every 10 to 20 minutes. Nasogastrically, the solution is generally administered at a rate of 500 mL/h in children 9 months to 6 years, 1000 mL/h in children 6 to 12 years, and 1500 to 2000 mL/h in adolescents and adults. When used to cleanse the<unk> s for a procedure, the total volume of solution prescribed is usually 2 to 4 liters, which is often taken at home by the patient. When used as treatment for poisoning, the procedure is usually performed in a healthcare facility, and normally continues until the rectal effluent is clear. Vomiting is a common side effect of the macrogol solutions used for<unk> , which may hinder the effectiveness of the procedure for any indication. In cases of poisoning, the presence of vomiting prior to the procedure is not uncommon. It may be the result of administration of ipecac prior to the procedure, and/or a symptom of the poisoning itself. Overdoses of such drugs as aspirin and theophylline are likely to result in vomiting. Whenever vomiting occurs before or during<unk> , the rate of the procedure may need to be slowed, alternatives considered, or an antiemetic such as metoclopramide administered.
Whole bowel irrigation
Colostomy reversal
Preperitoneal packing
Ileostomy
Gastroenterostomy
Enterostomy
Selective digestive decontamination
Abdominal decompression