ATI: Immune System Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

ATI: Immune System Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is the most important step in preventing the spread of respiratory infections? A. Taking antibiotics B. Wearing gloves only C. Practicing proper hand hygiene D. Avoiding exercise Which immune cell is primarily responsible for antibody production? A. Neutrophils B. T cells C. B cells D. Macrophages What does a positive Mantoux test indicate? A. Active tuberculosis infection B. Exposure to tuberculosis bacteria 2 C. Immunity to TB D. Allergy to TB vaccine How can a nurse reduce the risk of catheter-associated urinary tract infections (CAUTI)? A. Change catheter daily B. Maintain sterile insertion technique C. Encourage limited fluid intake D. Remove catheter only when necessary Which of the following is a common manifestation of sepsis? A. Bradycardia B. Hypotension and tachycardia C. Hyperglycemia only D. Rash Why should clients with HIV avoid live vaccines? A. They are ineffective B. They cause allergic reactions 3 C. They may cause infection due to weakened immunity D. They increase viral load What is the best way to teach a client about preventing infection? A. Use complex medical terms B. Give only written instructions C. Provide clear, simple instructions with demonstrations D. Rely on family members only Which of the following is a characteristic of a viral infection? A. Elevated neutrophils B. Elevated lymphocytes C. Elevated platelets D. Elevated erythrocytes What is the role of macrophages in immune response? A. Produce antibodies B. Release histamine 4 C. Engulf pathogens and present antigens to T cells D. Destroy red blood cells When is droplet precautions necessary? A. For infections like tuberculosis