Instruct: Classify Amazon reviews into positive or negative sentiment
Query: critical care made incredibly easy

A good exercise for review or learning in the critical care area. I found the questions to range from easy through very difficult. Some nurses only work in certain areas of critical care i.e., cardiac, burns, brain trauma, so this offers a chance to gain knowledge in areas other then your expertise. It's so simple to answer a cardiac question if you deal with it day in and day out, but a burn question may really stop you in your tracks. What is best is the answer is always given along with the rationale. Also hints are given if you need them, although I like to try and use that option only when really stumped. I also found there to be quite a lot of questions although some come up more often, which would be the only drawback. Another nice options is you can pick the categories you want and the amount of questions you wish to answer. The animation is an added attraction. It puts a little fun into the study time.