Nasogastric/Orogastric Tube Placement Verification Study Using RightSpot pH Indicator to Verify Gastric Acidity

Primary objective: To assess the level of accuracy of the RightSpot pH Indicator in determining correct placement of NG/OG tubes as compared to the gold standard of CXR in Emergency Department \& ICU patients. Hypothesis 1: In greater than 90% of the cases, RightSpot pH Indicator will be successful in confirming the placement of NG/OG tubes by demonstrating a pH of 4.5 or less in patients with CXR proven tube placement. Hypothesis 2: The time to confirmation of NG/OG tube placement will be significantly less using the RightSpot pH Indicator than using CXR. The time will be calculated by the start time consisting of the time that the NG/OG tube was placed until the end time, which will be when the device pH Indicator testing is performed. The time to confirmation using the gold standard of a CXR will begin when the NG/OG tube is placed and end when the CXR is available on PACS (picture archiving and communication system). Secondary objective: To determine via subgroup analysis whether gross blood in the stomach, presence of acid-reducing medications, or trauma affects the accuracy of NG/OG placement determination by the RightSpot pH Indicator.