what is aspirate nasogastric
A nasogastric tube is a narrow bore tube passed into the stomach via the nose. It is used for short-or medium-term nutritional support, and also for aspiration of stomach contents-eg, for decompression of intestinal obstruction.A wide bore tube is used if drainage is needed; otherwise, a finer bore tube is used. In the absence of a positive aspirate test, where pH readings are more than 5.5, or in a patient who is unconscious or on a ventilator, an X-ray must be obtained to confirm the initial position of the nasogastric tube.