Tilt test overview
As occurs during acute blood loss, standing or tilting causes a reduction in central blood volume resulting in a reduction of central venous pressure and venous return.
In this simulation you will explore the resultant effects of gravity on the circulation during 60° and 80° postural tilt. To do this you will examine the effect tilt has on mean arterial pressure, heart rate, cardiac output, stroke volume and total peripheral resistance.
Watch the video below for an overview of the procedure followed to perform this experiment in a laboratory.
Please note that the video has been edited for brevity. In reality, the pooling of blood is progressive, and takes several minutes to stabilise.