Immune and Infectious Disorders

RN Nursing Med-Surg Immune and Infectious Disorders is the focus of this page, and it covers everything you need to feel confident when these topics show up on your exams. From hypersensitivity reactions and autoimmune conditions to HIV/AIDS, sepsis, and common infectious diseases, this section walks you through the core concepts that appear most often in medical-surgical nursing coursework and standardized testing.

This page is built for RN students in their second or third year who are deep in their med-surg rotation or gearing up for a major proctored exam. If you have ever mixed up the stages of HIV infection, blanked on the priority nursing interventions for a patient in septic shock, or struggled to keep immunosuppressive drug side effects straight, you are in the right place. The content is organized so you can move from understanding the underlying pathophysiology to applying that knowledge in client scenarios — the same way exam questions are written.

The best way to use this page is to work through the practice questions tied to each disorder. As you go, pay close attention to the rationales — they explain the "why" behind each answer and help you build the clinical reasoning skills that matter on test day and in practice. Start a practice session now to find out which immune and infectious disorder topics are already solid and which ones need more of your attention before your next exam.