About the Author Pat Juarez, RN, MS (Illinois) has critical care nursing experience as a clinical nurse specialist (CNS), staff nurse, and educator, and she held the CCRN credential for more than 40 years. As the clinical development specialist for critical care, Pat developed and provided oversight for the critical care nursing curriculum for a large health care system for more than 10 years. She currently teaches a CCRN certification review course on a consulting basis and is the author of Barron’s Adult CCRN Premium Exam book. About the Publisher Many great things begin with a tiny spark, and for Manuel H. Barron that spark came from a mimeograph machine in the basement of his Brooklyn, NY, bookstore in the late 1930s. People from the community asked Mr. Barron for books to help their children study for the New York State Regents exams. After realizing there wasn't anything available, Mr. Barron created his own study guides. Now, more than 80 years later, Barron’s continues to help millions of learners worldwide prepare for their next steps. With offerings from pre-college prep to world language guides and professional certification exams, Barron’s wants to be part of your success story no matter what learning path you’re on. You can trust Barron’s to provide exceptional products created only by top experts with years of experience in education. From generation to generation, our mission remains the same: Learn, grow, and succeed with Barron’s throughout your life-long learning journey.