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An Instrumented Pull Test to Characterize Postural Responses
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What everybody should know about postural changes.

Benoit Dugué1, Giovanni Lombardi2, Giuseppe Banfi2

  • 1a Faculty of Sport Sciences , University of Poitiers, Laboratoire Mobilité Vieillissement Exercice (MOVE-EA6314) , Poitiers , France.

Scandinavian Journal of Clinical and Laboratory Investigation
|May 23, 2018
PubMed
Summary
This summary is machine-generated.

Posture changes significantly impact blood test results by causing hemoconcentration or hemodilution. Standardizing patient posture before blood collection is crucial for accurate clinical chemistry analysis.

Keywords:
Blood specimen collectionlaboratory educationlaboratory standardizationposturepreanalytical factors

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Area of Science:

  • Clinical Chemistry
  • Physiology
  • Medical Diagnostics

Background:

  • Posture variations are known to alter blood analyte concentrations, particularly macromolecules.
  • Transitions from supine to sitting/standing induce hemoconcentration, while standing to sitting/lying causes hemodilution.
  • Clinical chemistry guidelines recommend standardized patient posture before blood collection to mitigate these effects.

Purpose of the Study:

  • To highlight the persistent challenges in standardizing patient posture before blood collection.
  • To propose novel strategies for improving adherence to posture guidelines.
  • To emphasize the importance of patient and healthcare provider education on postural influences in blood testing.

Main Methods:

  • Review of existing guidelines and practices for blood specimen collection.
  • Analysis of the physiological impact of postural changes on blood composition.
  • Discussion of educational and procedural interventions.

Main Results:

  • Despite established guidelines, proper standardization of posture before blood collection remains inconsistent.
  • Current educational efforts for healthcare professionals have not fully resolved the issue.
  • Patient and general population awareness regarding posture's impact on blood tests is limited.

Conclusions:

  • Improving education for medical and paramedical personnel, especially during initial training, is essential.
  • Educating patients and the general public can enhance compliance with pre-collection posture recommendations.
  • Implementing new communication strategies is vital to overcome the failure in standardizing posture for accurate blood sample collection.