SATURDAY APPOINTMENTS ONLY
The first part of isovolemic venesection is the same as the normal one, the nurse draws 450ml of blood from you. In the second part the nurse infuse saline hydration fluid.
Some people may feel faint or tired after their venesection. IV fluid replacement can help improve this. It also help general hydration and can be beneficial for athletes.
BEFORE THE APPOINTMENT
The only thing you need to think about is being hydrated. You can eat before if you want to.
AFTER THE APPOINTMENT
Avoid training that day. Some people feel dizzy or faint after their appointment, make sure you eat and drink after.