Correct length determination of nasogastric feeding tubes in hospitalized adults in a general hospital

INTERVENTION: Participants are randomised to either the control or intervention group by using block randomisation. In the control group external length determination of the nasogastric tubes is performed using the nose‐ear‐xiphoid distance. In the intervention group external length determination is performed using the Hanson’s formula corrected nose‐ear‐xiphoid distance. In both groups it is attempted to obtain gastric aspirate immediately after placement of the nasogastric tube. CONDITION: This study is conducted in the field of nursing and healthcare in patients with a medical indication for nasogastric tube placement. ; Respiratory ; Nasogastric tube placement PRIMARY OUTCOME: 1. The tip position of the nasogastric tube inside the stomach is measured using the technique of X‐ray (chest X‐ray images) at the moment immediately after inserting/repositioning of the tube; 2. The obtainment of gastric aspirate after insertion of the nasogastric tube is measured using a syringe (60 ml) with a conical end and pH indicator strips with a colour 0.5 pH units scale at a time lapse of 1 hour after placement/reposition of the tube SECONDARY OUTCOME: The association between the study group and the outcome (controlled for age, gender, body length, and cognitive awareness) is measured using a multivariate binary logistic regression analysis at time of data‐analysis. INCLUSION CRITERIA: 1. Adult (male/female) >= 18 years 2. Medical indication for nasogastric tube feeding/nasogastric tube placement