Option: RA CANCEL

This function allows the user to cancel an exam on record if a report has
status updated to 'CANCELLED'. If 'NO', the request status will be updated
to 'HOLD' and may be selected for registration at a future date.
not already been filed for that exam.  An exam is
often cancelled if the patient cannot have the exam performed.  
For example, the patient may become ill while waiting to have the
procedure performed.
Once the examination is 'CANCELLED', the user will be prompted to
answer with a 'YES' or 'NO' to cancel the request associated with
this exam. If 'YES', the request will also be cancelled and the request