Can I refuse treatment for my dad who has had a stroke

My dad had a life changing stroke a month ago. He also has Prostate cancer. 
At the time of the stroke he was not expected to recover so they stopped his cancer medication and treatment, he is now stable but has been left mentally disabled and cannot make any decisions for himself. 
he had always told us that he wouldn't want to live if he didn't have quality of life and we therefore don't want the doctors to treat his cancer even though he is stable. 
Can we request this as his family and let nature take it's course? 

Parents
  • I assume he did not make any written refusal of treatment nor lasting power of attorney. You can certainly make your and by proxy his views known. Whether or not will be followed I know not.

    Does emphasise the importance of everyone of any age making necessary written and legally binding statements of their wishes  -  too often too late (like making of Wills!).

Reply
  • I assume he did not make any written refusal of treatment nor lasting power of attorney. You can certainly make your and by proxy his views known. Whether or not will be followed I know not.

    Does emphasise the importance of everyone of any age making necessary written and legally binding statements of their wishes  -  too often too late (like making of Wills!).

Children
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