What does preanalytical mean in phlebotomy?
Preanalytical variables occur prior to specimen testing and may include variables involving the process of obtaining a specimen. Analytical variables occur during actual testing of the specimen.
What is pre analytic?
Preanalytical Phase. The preanalytical phase is the phase where the laboratory has no direct control on the process. Preanalytical factors that can affect results include: sample type, sampling time, sample handling, patient’s preparation and the nutritional status of the patient.
What does include in preanalytical phase?
Preanalytical phase comprises of test selection, patient identification, collection of the sample, handling of the sample, sorting out, pipetting and centrifugation (2, 3). Negligence in any of these steps can lead to erroneous results attributed to preanalytical phase.
What is the pre examination or preanalytical phase of phlebotomy?
The pre-analytic testing phase occurs first in the laboratory process. This phase may include specimen handling issues that occur even prior to the time the specimen is received in the laboratory. Important errors can occur during the pre-analytic phase with specimen handling and identification.
What is preanalytical error?
The preanalytical errors refer to all of the inappropriate performances before the specimens are measured by analyzers, such as improper sample collection, transport delays, illegible handwriting on requisition, and so on.
What is Post analytic?
The post-analytical phase is the final phase of the total testing process and involves evaluation of laboratory test results; release of test results in a timely manner to appropriate individuals, particularly critical results; and modification, annotation or revocation of results as necessary to support clinical …
What are preanalytical errors?
What are pre analytical variables and what is the phlebotomists responsibility for them?
What are preanalytical variables, and what is the phlebotomist’s responsibility for them? Variables that occur before performing analysis of the specimen. Phlebotomists are most responsible for controlling preanalytic variables, such as ensuring that the equipment they use is free of defects.
Which is an example of a preanalytical error?
The most commonly reported types of pre-analytical error are: a) missing sample and/or test request, b) wrong or missing identification, c) contamination from infusion route, d) haemolysed, clotted, and insufficient samples, e) inappropriate containers, f) inappropriate blood to anticoagulant ratio, and g) …