NR 226 Exam 2 (2026) | Chamberlain University | 120+ Exam Questions & Correct Answers | Fluid & Electrolyte Balance, Acid-Base Disorders, IV Therapy, Sleep & Older Adult Nursing

Prepare for NR 226 Exam 2 with this comprehensive study guide featuring 120+ exam-style questions and verified correct answers designed for Chamberlain University nursing students. This resource provides a focused review of the most frequently tested concepts in fluid and electrolyte balance, acid-base disorders, intravenous (IV) therapy, blood transfusions, sleep physiology, and gerontological nursing. Presented in a concise question-and-answer format, this study guide strengthens clinical reasoning, reinforces evidence-based nursing concepts, and prepares students for unit exams, ATI assessments, HESI examinations, NCLEX-style questions, and clinical competency evaluations. The guide includes comprehensive practice questions covering normal laboratory values, electrolyte imbalances including hyperkalemia, hypokalemia, hypernatremia, hyponatremia, hypercalcemia, hypocalcemia, hypermagnesemia, and hypomagnesemia, arterial blood gas (ABG) interpretation, respiratory and metabolic acidosis and alkalosis, bicarbonate and carbon dioxide regulation, osmosis, diffusion, filtration, active transport, intracellular and extracellular fluid compartments, isotonic, hypotonic, and hypertonic IV solutions, IV flow rates, fluid volume regulation, antidiuretic hormone (ADH), aldosterone, renin-angiotensin-aldosterone system (RAAS), thirst mechanisms, sensible and insensible fluid losses, and nursing interventions for maintaining fluid homeostasis. The document also reviews sleep physiology, circadian rhythms, hypersomnolence, polysomnography, the reticular activating system (RAS), the bulbar synchronizing region (BSR), and key concepts related to aging and nursing care of older adults. Its high-yield format makes it an excellent resource for rapid revision, classroom examinations, and licensure preparation. The content aligns with evidence-based nursing concepts presented in widely used nursing references, including: Potter, P. A., Perry, A. G., Stockert, P. A., & Hall, A. M. Fundamentals of Nursing. Elsevier. Hinkle, J. L., & Cheever, K. H. Brunner & Suddarth's Textbook of Medical-Surgical Nursing. Wolters Kluwer. Ignatavicius, D. D., Workman, M. L., & Rebar, C. R. Medical-Surgical Nursing: Concepts for Interprofessional Collaborative Care. Elsevier. Infusion Nurses Society (INS). Infusion Therapy Standards of Practice. American Association of Critical-Care Nurses (AACN). AACN Essentials of Critical Care Nursing. Relevant Students: Chamberlain University NR 226 students Bachelor of Science in Nursing (BSN) students Associate Degree in Nursing (ADN) students Practical Nursing (PN/LPN/LVN) students Fundamentals of Nursing students Adult Health Nursing students Medical-Surgical Nursing students Gerontological Nursing students ATI Fundamentals students HESI Nursing students NCLEX-RN candidates Nursing students preparing for exams, clinical check-offs, and competency assessments Keywords: NR 226 Exam 2, NR226, Chamberlain University, fluid and electrolyte balance, electrolyte imbalances, potassium, hyperkalemia, hypokalemia, sodium, hypernatremia, hyponatremia, calcium, hypercalcemia, hypocalcemia, magnesium, hypermagnesemia, hypomagnesemia, acid-base balance, arterial blood gases, ABG interpretation, respiratory acidosis, respiratory alkalosis, metabolic acidosis, metabolic alkalosis, bicarbonate, PaCO2, PaO2, IV therapy, IV fluids, isotonic solutions, hypotonic solutions, hypertonic solutions, osmosis, diffusion, filtration, active transport, intracellular fluid, extracellular fluid, ADH, aldosterone, RAAS, fluid homeostasis, dehydration, hypervolemia, IV calculations, blood transfusion, sleep physiology, circadian rhythm, hypersomnolence, polysomnography, reticular activating system, bulbar synchronizing region, older adults, gerontological nursing, ATI preparation, HESI preparation, NCLEX preparation, nursing exam questions, nursing study guide