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A Comparison of Measurements of a Pediatric Supplement
Taylor N Creech1, Michael Bailey-Van Kuren2, Jessica Sparks3
1Department of Speech Pathology and Audiology, Miami University, 301 S. Patterson Dr, 26 Bachelor Hall, Oxford, OH, 45056, USA.
Abstract:
This study evaluated the flow properties of viscosity and flow rate for water and two common pediatric liquids. The flow properties of the test liquids are of interest to create a cup simulation model and "smart" prototype training cup. Two objective methods of determining flow properties were utilized: a rheometer to assess viscosity and a modified version of the International Dysphagia Diet Standardization Initiative (IDDSI) to assess flow rate. Rheometer results concluded that the pediatric supplements were less than 50 cP at all shear rates evaluated and exhibited shear-thinning properties, placing both liquids into the "thin" category. The IDDSI, which was performed according to standardized protocol and also with experimental modifications of varying syringe volumes, determined that all three test liquids had greater than 1 mL/s flow rate across all syringe types/sizes. The experimental modification of the IDDSI with 60 mL syringe volume was found to be the most consistent and applicable with discrete values obtained across all liquids tested. A flow rate factor equation can be determined with the use of a 60 mL syringe, with our laboratory setup, to create the cup simulation model. This computer-generated cup simulation model also aims to integrate engineering with clinical practice to develop a "smart" prototype training cup equipped with software to control flow rate.
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