CSC exam- any practice question recommendations?

[paigeturner]

Background of SICU 1yr, recently transitioned onto a CVICU (2months so far), I passed my CCRN 2 months ago and now am planning to take my CSC (cardiac surgery certification), I got a 18/21 on cardiovascular section on the CCRN. I really liked Pass CCRN!'s practice questions, and was wondering if there are anything that comprehensive for the CSC? I already have Nichole Kupchik's Ace the CSC book, and AACN's review course for CSC, but I would really like access to online practice questions the most. Thank you.