Standardization of collection requirements for fasting samples

摘要: Standardized protocols for patient preparation laboratory testing are currently lacking. Moreover, a great heterogeneity exists in the definitions of "fasting" being used among healthcare workers and literature. Marked metabolic hormonal changes occur after food ingestion, mainly due to absorption fluids, lipids, proteins, carbohydrates other constituents. This postprandial response varies markedly numerous factors, such as eating behavior, composition, fasting duration, time day, chronic acute smoking, coffee alcohol consumption. It is therefore crucial minimize total variability by controlling many these modifying factors possible. Control abovementioned effects on can only be achieved standardizing way patients prepared testing, i.e. defining well what not allowed (e.g., coffee, tea, water) during period prior sample collection. The aim this article describe range different approaches tests, provide framework harmonization requirements tests.