Anyone who took the cmc (cardiac medicine certification)

I'm in need of advice.. I'm planning to take CMC soon but I used my CCRN review material since resources for this certification were limited... Anyone who took the certification who can give me an idea on how to prepare for CMC? thank you in advance...
Just wondering if you took the test. Am planning on doing it, but don't quite no what to study. The CMC seems way to broad unlike the CSC which I have.