Sánchez DJS, Monares ZE, Peniche MKG, Martínez REA, Martínez AFR, Terán SJM

Language: Spanish
References: 26
Page: 118-122
PDF size: 216.72 Kb.

ABSTRACT

The preanalytical phase of blood gas analysis is the stage in which the supplies are prepared, the sample is taken and transported for analysis (analytical phase) and interpretation (postanalytical phase). In the so-called "laboratory errors" a significant fraction occurs outside the laboratory. Of 100% of the errors that occur in laboratory studies, the preanalytical phase occupies 75%, the analytical 4% and the postanalytical 21%. The preanalytical phase is characterized by four steps: 1) preparation, 2) sample collection, 3) sample storage and 4) sample transport, each one prone to multiple errors, due to its "obviousness". The preanalytical phase is the most susceptible to errors, which translate into time and money for the institutions. But the most important thing is that these errors cause "discomfort", complications or wrong therapeutic actions in patients.

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