Nurse Linda has explained her concerns over W's drug intake.

In her day in the acute wards, they would give 5mg of diamorphine to post operatives. So, just to stress it here, if you had a leg amputated, or kidney removed they would inject 5mg. If you had major major pain, (oh I don't know, open heart surgery?) they would give you 10mg.

OK W is getting 150mg of diamorphine - four times a day. Oh plus the intrathecal into his spine.
Nurse Linda is concerned what the top level of drugs actually is. Because she would never in her wildest dreams think of giving anyone this level of diamorphine.

I have related this to W. And told him to stop whinging - how the hell can he be in pain with that level of drugs? Shape up or ship out W!