Hesi Rn Pathophysiology Exam | Complete Review Workbook | Verified Answers | 2025/2026 Edition

HESI RN Pathophysiology Exam | Complete Review Workbook | 2025/2026 Edition Section 1: Introduction This workbook offers comprehensive Q&A for disease mechanisms, risk factors, signs/symptoms, and nursing interventions. Perfect for reinforcing pathophysiologic concepts across systems and preparing for clinically based reasoning in the HESI Patho Exam. Section 2: Exam Questions and Full Answers 1. What is the primary pathophysiological mechanism of type 1 diabetes mellitus? A. Insulin resistance B. Autoimmune destruction of pancreatic beta cells C. Excessive glucagon secretion D. Impaired glucose uptake by cells Full Answer: Answer B. Autoimmune destruction of pancreatic beta cells. This leads to absolute insulin deficiency, causing hyperglycemia and metabolic disturbances. 2. What is the most common cause of hypertension in adults? A. Renal artery stenosis B. Primary (essential) hypertension C. Pheochromocytoma D. Coarctation of the aorta Full Answer: Answer B. Primary (essential) hypertension. This accounts for 90-95% of cases, linked to genetic and lifestyle factors. 3. What pathophysiological process is responsible for the edema in heart failure? A. Increased capillary permeability B. Decreased cardiac output and venous congestion C. Excessive aldosterone secretion D. Lymphatic obstruction Full Answer: Answer B. Decreased cardiac output and venous congestion. This causes fluid backup in tissues due to poor