Possible job through work agency

Today I got an email back from a work agency I had contacted. I know they are not the best way to find a job sometimes, and I've heard my share of nasty rumors about working for agencies. But with jobs in the health care feild you need experience and they will really help me with that. Last week they had me set up an account and fill out the long application. today when they emailed me they had me take their competency test[s]. I sat down at my computer at noon today to read all of the suppelmental material that went along with it and I wasn't finished reading it without any breaks till about 3:10. When I finally started the tests things kind of went faster, but their was over a 100 qeustions in each one...Nothing but factual medical jargen and math=( They gave me my scores right after and I feel so proud of myself, because not only was the content of the test still interesting to me, but I got a 89% on the biggest one, I got 80% on two others and 100% on the last! So I know that if they decide not to hire me, it wont be because I'm stupid or unable to do the job.