It's likely the conversation went something like this:
Husband, in waiting area, wife taken off in emergency situation. Member of medical team comes in.
Husband: is everything okay?
Medic: I came out for a quick update as we're aware you've been waiting for quite a while with no news
Husband: are they alright?
Medic: The situation right now is fairly serious, your wife is so we've given and we're hopeful that these will work to
Husband: please prioritise my wife/please prioritise our baby (delete as applicable)
Medic: We're doing all that we can, if is not successful then we will attempt
Husband: please just save my wife/save our baby
Medic: We'll update you again as soon as we're able
Husband thinks he's been asked and has made a choice then when his wife/his baby/both come through it alive he thinks its because he picked them when really what happened is that the medical team did what they were trained to do, what they were required by law to do, and the Husband had no choice in it whatsoever.