I passed the test yesterday, this book along with James Allen's "Nursing Home Administration" were my two primary study guides.
One note is that I had the fourth edition and I got the 5th to make sure I had the latest. I could not find any difference the questions were the same in the same order. Same goes for the text, I used the 4th edition and it had the same info. The main thing is that the test doesn't ask too much about current trends, like the study guide. For example the study guide asks things about whether the industry grew from 1996 to 2000. There was no questions like that on the actual test.
You should really know what members are in the Quality assurance team.