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Blood pressure monitoring is a crucial clinical procedure in diagnosing and managing various cardiovascular conditions. Despite its significance, the accuracy of blood pressure measurements can be compromised by multiple factors, potentially leading to either falsely high or low readings. These inaccuracies are critical as they can significantly impact patient care. So, it is vital to understand these challenges deeply and adopt strategic approaches to minimize errors.
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Related Experiment Video

Updated: Jun 14, 2026

In Vitro Model of Physiological and Pathological Blood Flow with Application to Investigations of Vascular Cell Remodeling
07:30

In Vitro Model of Physiological and Pathological Blood Flow with Application to Investigations of Vascular Cell Remodeling

Published on: November 3, 2015

The link between intravenous multiple pump flow errors and infusion system mechanical compliance.

Robert S Murphy1, Steven J Wilcox

  • 1Faculty of Engineering, Manukau Institute of Technology, Auckland, New Zealand. murphy16480@hotmail.com

Anesthesia and Analgesia
|March 25, 2010
PubMed
Summary

Accurate intravenous (IV) drug delivery in intensive care is critical. Small changes in infusion system extracorporeal volume, or compliance, can degrade drug delivery accuracy, impacting patient safety.

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Last Updated: Jun 14, 2026

In Vitro Model of Physiological and Pathological Blood Flow with Application to Investigations of Vascular Cell Remodeling
07:30

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Published on: April 26, 2024

Area of Science:

  • Medical Engineering
  • Pharmacology
  • Intensive Care Medicine

Background:

  • Intravenous (IV) drug delivery in intensive care units (ICUs) frequently involves multiple simultaneous infusions.
  • Accurate drug administration is paramount due to potent medications and critically ill patients.
  • System equilibrium disturbances can lead to unacceptable degradation in infusion accuracy.

Purpose of the Study:

  • To investigate the causes of accuracy degradation in multiple IV infusion systems.
  • To verify experimental findings using a mathematical model.
  • To explore the impact of extracorporeal volume changes on infusion accuracy.

Main Methods:

  • Development of a mathematical model for a simple IV infusion system.
  • Simulation of a multiple pump fault scenario.
  • Verification of model results against experimental data.

Main Results:

  • Flow degradation in IV drug delivery systems is linked to minor alterations in extracorporeal volume (compliance).
  • The mathematical model accurately predicted accuracy degradation observed in experimental setups.
  • Small changes in system compliance significantly impact infusion accuracy.

Conclusions:

  • Compliance is a critical factor affecting the accuracy of IV drug delivery in intensive care.
  • Mathematical modeling can be a valuable tool for understanding and optimizing IV infusion systems.
  • The findings support the development of small-volume infusion systems with minimal mechanical compliance for improved patient safety.