Final answer:
The pressure monitored to obtain right ventricular cardiac preload is end diastolic volume (EDV). It is measured using thin tubes called catheters to transmit pressures to external measuring devices.
Step-by-step explanation:
The type of pressure that is monitored to obtain right ventricular cardiac preload is end diastolic volume (EDV). EDV refers to the amount of blood in the ventricles at the end of atrial systole just before ventricular contraction.
In order to obtain the pressure measurements, thin tubes called catheters are threaded by qualified healthcare workers into appropriate locations to transmit pressures to external measuring devices.
Monitoring EDV is important for assessing the filling of the right ventricle and ensuring adequate preload for efficient cardiac function.