Describe the factors that influence the outcome of laboratory result

Handling of blood samples is a critical aspect of the laboratory process, and there are several factors that can influence the outcome of laboratory results. These factors can affect the accuracy, reliability, and validity of the results, which in turn can impact patient diagnosis and treatment. To ensure the quality of laboratory results, it is essential to consider the following factors:

1. Pre-analytical Factors:
   a. Sample Collection: The method of blood sample collection is a crucial factor. Venipuncture, arterial puncture, or capillary sampling can all yield different results due to variations in blood composition and contamination. Proper technique and adherence to collection guidelines are essential.
   b. Timing: The timing of sample collection can greatly affect results. For example, some analytes ______ _____ ______ _____ _________ __________ ____ ___ __________ _____ _____ _________.
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