THanks for the post on what the coroner said. The morphine and versed wouldn't be metabolized though and I don't think it's all that unstable that the concentration would go down significantly.
I think those were sick patients, mostly in an advanced terminal condition. As I remember, the temp was ~98 and very humid. They were on an upper floor in a concrete building, so that made it hotter. I think most of the folks, that are decades younger, that complain of unbearable heat when it's 80 would have died-sedated, or not. I think the doc's intent to have them sleep through it was the right thing to do. I think any discussion that might have occurred regarding the sedation would have involved the patient's ability to survive the heat, humidity, and their own condition while under the sedation. When the condtion is terminal, I think care and comfort is the appropriate focus, not survival through hellish conditions.