Being level headed in the face of adversity is the key to equanimity. Calm, cool and collected.
I did not get enough of a factual basis though to respond to the question you posed. I presume, however, your friend had the presence of mind based upon experience and familiarity of the situation to make a fair and proper medical decision under the circumstances.
Good luck in the contest.
RE: How do you judge equanimity when you have the power of life and death in your hands?