• A 3-oz water swallow test identified 80% (16/20) of patients aspirating during a subsequent videofluoroscopic modified barium swallow examination (sensitivity, 76%; specificity, 59%). It also identified patients with more severe dysphagia aspirating larger amounts (sensitivity, 94%; specificity, 26%) or thicker consistencies (sensitivity, 94%; specificity, 30%) of test material. The 3-oz water swallow test is a sensitive screening tool for identifying patients at risk for clinically significant aspiration who need referral for more definitive modified barium swallow evaluation.
DePippo KL, Holas MA, Reding MJ. Validation of the 3-oz Water Swallow Test for Aspiration Following Stroke. Arch Neurol. 1992;49(12):1259–1261. doi:10.1001/archneur.1992.00530360057018
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