Complex sentence: Kelso is also shown having to make hard choices that affect him emotionally, such as an episode in which he chooses to treat a rich patient at the expense of a poor one, with both having identical symptoms.
Split into simpler sentences: Kelso is also shown having to make hard choices that take an emotional toll on him. In one episode he chooses to treat a rich patient at the expense of a poor one, with both having identical symptoms.