While Melinda gets an MRI of DOOOM!, Foreman makes fun of Cameron for being a prude about teen sex. At least she isn't writing TV shows that punish sex with horrible painful near-fatal illnesses, though. They do pay attention to their patient long enough to pronounce her heart free of coronary-artery disease.
Foreman tells Melinda this (apparently, her super-overprotective 'round-the-clock monitoring mother went off to get a coffee), and also that they think she either has an infection, or organ-rejection issues that she can look forward to a barrage of tests for. Melinda's brain, apparently compensating for her loss of a working heart and making her intelligent for the first time, figures out that Melinda is probably going to lose her new heart. Foreman assures her that she'll keep her heart for decades of healthy, happy life, which I wouldn't say without knowing for sure that she wasn't in the middle of rejecting it. Melinda informs him that her mother's protectiveness does not extend to the internet, so she's done her research on heart transplants. They only last an average of five to ten years. Oh ho ho! Looks like Foreman was so busy hating on Melinda's mom for "infantilizing" her daughter that he didn't realize that he was doing the same exact thing to her with his overly optimistic outlook! Melinda whines that since she doesn't have much life left in her, she'd like to be doing something better with it than sitting in her sterile bedroom. I agree with this until she says she wants to go to high school, which is probably more of a waste of one's precious life minutes than anything else. I guess the grass is always greener on the other side of the bedroom window, though.