I have a queston about my eligibility to take the CCRN exam. I have 5 years pure Critical Care (ICU) experience, and 1 yr CCU experience and am currently working in Acute Dialysis. My role in Acute Dialysis leads me to work in the ICU in a daily basis, treating critically ill patients and allowing me to use my critical thinking skills. I have not officially worked in ICU as a staff RN for 4 years. Am I eligible to take the CCRN exam?