An Sist Sanit Navar
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An Sist Sanit Navar · May 2008
[Validation of the INFLESZ scale to evaluate readability of texts aimed at the patient].
The readability of written texts aimed at patients is an indicator of quality. Szigriszt made an adaptation of the RES Flesch Score, calling it "Escala de Nivel de Perspicuidad" (Clarity Level Scale), to measure the difficulty in reading a text. But Szigriszt used a text sample that was neither representative nor random, which is why the conclusions are not sufficiently consistent. The aim of this article is to complete the process begun by Szigriszt, review the Szigriszt Scale, comparing it with Flesch's scale, and propose a scale according to Spanish reading habits. ⋯ Only the scientific magazines are situated between 0 and 50. There are no publications with scores lower than 15. Szigrsizt locates "Normal" from 50; Flesch from 60. An intermediate position is adopted and a new scale is proposed: the INFLESZ Scale, which establishes 5 sections: "Very difficult" (<80), "Somewhat difficult" (40-55), "Normal" (55-65), "Quite easy" (65-80) and "Very easy" (>80). Neither the Clarity Level Scale of Szigriszt nor the RES Flesch Score are adapted to Spanish reading habits. In the case of texts on health, there is a greater probability of their being read and understood if they exceed 55.
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The choice of a venous access system to provide safe blood collection and reliable analytical results for that sample is of paramount importance in any accident and emergency department. The objective of this study was to identify the factors associated with haemolysis in venous blood samples, where the variables studied were: type of venipuncture (needle and catheter), type of catheter (3 catheters of 3 different materials) and diameter of the catheter. The sample was obtained from all patients who required a blood test in the accident and emergencies department of the Virgen del Camino Hospital over 34 days, collected in 3 different periods (September-November), involving a total of 1.933 procedures. ⋯ We observe an 8% (39/475) of haemolysis in the samples taken by protective Teflon catheter, 18% (77/426) by Protectiv plus polyurethane and 15% (106/684) by BD-Nexiva Vialone. The haemolysis index fell with an increase in the size of the catheter, those of 18G showing 13% (115/867) and those of 20G showing 15% (107/708). The combination of catheter type and size maintains the smallest percentages of haemolysis in Teflon catheters and high diameters of 18G with 6% (19/301), less than half the haemolysis of the polyurethane catheters and a third of that for Vialone catheters respectively.