Test Bank For Pathophysiology: A Practical Approach 5th Edition by Lachel Story

Pathophysiology Practice Questions 50 Multiple Choice Questions Chapter 1: Cellular Function Question 1: Which cellular organelle is primarily responsible for ATP production? A) Nucleus B) Mitochondria C) Endoplasmic reticulum D) Golgi apparatus E) Ribosomes Question 2: What is the primary mechanism of cellular injury in hypoxia? A) Increased protein synthesis B) Enhanced cellular division C) Impaired ATP production D) Excessive calcium influx E) Reduced membrane permeability Question 3: Which type of necrosis is characterized by loss of cellular architecture and protein denaturation? A) Liquefactive necrosis B) Caseous necrosis C) Coagulative necrosis D) Fat necrosis E) Fibrinoid necrosis Chapter 2: Immunity Question 4: Which cells are primarily responsible for cell-mediated immunity? A) B lymphocytes B) Plasma cells C) T lymphocytes D) Neutrophils E) Eosinophils Question 5: What is the primary function of immunoglobulin G (IgG)? A) Allergic reactions B) Mucosal immunity C) Systemic immunity and opsonization D) Complement activation only E) Immediate hypersensitivity Question 6: Which hypersensitivity reaction is mediated by antibodies? A) Type I B) Type II C) Type III D) Type IV E) Type V Chapter 3: Hematopoietic Function Question 7: What is the normal lifespan of a red blood cell? A) 30 days B) 60 days C) 90 days D) 120 days E) 180 days Question 8: Which condition is characterized by a deficiency in intrinsic factor? A) Iron deficiency anemia B) Pernicious anemia C) Sickle cell anemia D) Thalassemia E) Aplastic anemia Question 9: What is the primary cause of sickle cell crisis? A) Infection B) Dehydration C) Hypoxia D) All of the above E) None of the above Chapter 4: Cardiovascular Function Question 10: Which chamber of the heart has the thickest muscular wall? A) Right atrium B) Left atrium C) Right ventricle D) Left ventricle E) All chambers are equal Question 11: What is the primary pathophysiological mechanism in heart failure? A) Increased cardiac output B) Decreased preload C) Impaired ventricular function D) Enhanced contractility E) Reduced afterload Question 12: Which condition is most commonly associated with the development of atrial fibrillation? A) Hypertension B) Hypotension C) Bradycardia D) Ventricular tachycardia E) Third-degree heart block Question 13: What is the most common cause of myocardial infarction? A) Coronary artery spasm B) Coronary thrombosis C) Aortic stenosis D) Mitral regurgitation E) Pulmonary embolism Chapter 5: Respiratory Function Question 14: What is the primary muscle of inspiration? A) Intercostal muscles B) Diaphragm C) Accessory muscles D) Abdominal muscles E) Scalene muscles Question 15: Which condition is characterized by irreversible airway obstruction? A) Asthma B) Chronic obstructive pulmonary disease C) Pneumonia D) Pulmonary edema E) Pneumothorax Question 16: What is the primary pathophysiological change in acute respiratory distress syndrome (ARDS)? A) Bronchospasm B) Increased pulmonary capillary permeability C) Decreased surfactant production D) Pulmonary vasoconstriction E) Airway inflammation Chapter 6: Fluid, Electrolyte, and Acid-Base Homeostasis Question 17: What is the normal pH range of arterial blood? A) 7.30-7.40 B) 7.35-7.45 C) 7.40-7.50 D) 7.45-7.55 E) 7.25-7.35 Question 18: Which electrolyte imbalance is most commonly associated with cardiac arrhythmias? A) Hyponatremia B) Hypernatremia C) Hypokalemia D) Hypocalcemia E) Hypomagnesemia