CCRN for a neuro nurse

i have 3-4 yrs neuro nontrauma ICU experience and 15 yrs medsurg/ED before that. I just wished for the best… picked a random answer on some hemodynamic questions. I personally feel like the CcRN is geared towards a CVICU nurse. I never even seen an IABP or managed a pacemaker during my ICU career. It felt like even the non hemodynamic cardiac questions have some sort of cardiac as part of the question scenario. I exited with 5 minutes left on the clock knowing no matter how i go back to the bookmared questions, i will never know the answers anyways. Lol. But i passed.