A series of lessons were learned this week on Nurse Jackie.

• Zoey learned that patients sometimes die;
• Dr. O'Hara learned that you can't escape gratitude when saving someone's life;
• Jackie learned that her daughter might have an anxiety disorder, and it's a bad idea to carry around one cell phone number for both your husband and your lover.

Read more about the episode titled "School Nurse" with our detailed recap.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.