Blood-spinning is a medical procedure used to shorten the healing time of an injury. Small samples of the patient’s blood are taken and spun in a Plasma Centrifuge Machine, allowing platelets and blood plasma to be isolated from other blood components. The platelets and plasma are then combined forming platelet-rich plasma (PRP), which has high concentrations of natural growth factors. The PRP sample can then be injected into the patient’s injury, which may help reduce pain and improve recovery speeds. This trainer is designed to demonstrate the operation, theory, repair and servicing of Cardiac Stress Test equipment that used at clinics & hospitals. The unit given the fault diagnosis so as to facilitate the teaching of trouble shooting techniques. A fault simulator is provided with circuit block diagram of the device for the students to study theoretically and experimentally in order to understand the operation of the device.