Related Experiment Video
Updated: Feb 17, 2026

Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge
Published on: January 20, 2023
[Systemic errors in the estimation of systemic arterial pressure via transfer functions after experimental changes of
Abstract:
The results of the experimental studies reveal the decrease of vascular rigidity with the increase of systemic error of the arterial pressure values estimated via implication of transfer functions following haemorrhage modeling in rats. Compensation of the circulating blood volume by means of dextran infusion resulted in restoration of both vascular rigidity and systemic error of estimated arterial pressure. The results can be put into medical practice as an approach for testing of non-invasive methods in cardiovascular research.
Related Concept Videos
Errors occurring during blood pressure monitoring
Several factors...
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Assessment of blood pressure in brachial artery(two-step method)
Equipments Used To Measure Blood Pressure
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Blood Pressure
Measurement of Blood Pressure

