I'm not a doctor and I've only watched a few episodes but from what I've seen, it's not very realistic lol. But then again, most medical dramas aren't realistic because they're overdramatised and have so much romance in them.
Not at all. Way to dramatised and only focussed on keeping the viewer engaged, not on depicting the medical word accurately.
In other words: Grey's Anatomy is too focused on individual calamities and is changeable based on the plot (see Seattle Firefighters, the same thing). If Grey's Anatomy would be realistic and authentic and depicts the everyday life of a whole hospitals, it gets boring quickly.