A study guide for the HESI A2 science nursing school test that calendarises a study plan for test-takers depending on how much time they have left before taking the test. AUTHOR: Michael Reid, MSN, RN, CCRN, is the founder and director of an NCLEX test-prep company (The NCLEX Cure) specialising in individuals who are looking to pass the NCLEX exam and become registered or practical nurses. Michael has worked for prestigious hospitals such as The Johns Hopkins Hospital and Northwestern Memorial Hospital. He currently works as a critical care nurse in a Chicago hospital ICU, in addition to teaching students from across the United States and abroad.