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Examen de sangre oculta en heces; Hemorragia digestiva oculta; Examen de sangre oculta en materia fecal
Puede haber resultados tanto falsos positivos como falsos negativos. Los errores se pueden reducir utilizando la técnica correcta de recolección de las muestras, evitando ciertas drogas y observando las restricciones alimentarias.
Tack J. Dyspepsia. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2010:chap 13.
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