If you are taking the state CEN (Certified Emergency Nurse) examination or just interested in what it entails, this quiz app will help you. 300 CEN questions (and answers) are included here. The questions covers the following topics: Cardiovascular Emergencies, Gastrointestinal Emergencies, Genitourinary, Maxillofacial, Medical Emergency, Orthopedic, Patient Care Management, Professional Issues, Psychological, Respiratory Emergencies, Shock and Substance Abuse.