Hi Deborah, namaste ... :>}
I was interested to read your post, and the replies, which I agree with.
Your patient has made his choice in asking for the Reiki. I do feel that sometimes Reiki brings things to the surface that are then dealt with and removed. Several people I have given Reiki to, have had pain and/or emotional distress occur during the session, which has then dissipated during the Reiki. Working with these particular patients regularly has brought about a gradual improvement in the underlying conditions - one was physical, the other emotional.
As long as you are comfortable in still giving the Reiki in these circumstances, and your patient is still asking for the Reiki - then my advice, for what it is worth is - go for it.
Love and light,
Philanty