Thickened fluids and thickened drinks are often used for people with dysphagia, a disorder of swallowing function.[1] The thicker consistency makes it less likely that individuals will aspirate while they are drinking. Individuals with difficulty swallowing may find that liquids cause coughing, spluttering, or even aspiration, and that thickening drinks enables them to swallow safely. Patients may be advised to consume thickened liquids after being extubated.
Liquid thickness may be measured by two methods, with a viscometer or by line spread test.