ATI RN
Immune System Disorders Quizlet Questions
Question 1 of 5
Which pairing of immune response type and immune response feature is not correct?
Correct Answer: C
Rationale: The correct answer is C because innate immune response is not mediated by lymphocytes. Innate response involves physical barriers, such as skin and mucous membranes, and cells like macrophages and neutrophils. Lymphocytes are part of the adaptive immune response, which is characterized by specificity and memory. Choice A is correct as the innate response acts rapidly due to pre-existing mechanisms. Choice B is correct as adaptive response results in memory cells for quicker response upon re-exposure. Choice D is correct as adaptive response can recognize and respond to specific pathogens through antigen recognition.
Question 2 of 5
Which of the following correctly explains an epitope?
Correct Answer: B
Rationale: Explanation: An epitope is a specific region on an antigen that elicits the immune response and triggers the production of a specific antibody. Therefore, choice B is correct as it accurately defines an epitope. Choices A, C, and D are incorrect because they do not accurately describe what an epitope is. Choice A refers to the paratope, the region of the antibody that binds to the epitope. Choice C refers to a component of the antibody structure, and choice D refers to a specific region of the antibody structure.
Question 3 of 5
The nurse is preparing an injection for an individual who requires passive immunity. In which situation would passive immunity be indicated?
Correct Answer: C
Rationale: Passive immunity is indicated when an individual needs immediate protection with ready-made antibodies after exposure to pathogens. This is the correct answer (C) as it provides immediate defense without waiting for the body to produce its antibodies. Choice A is incorrect because passive immunity is temporary, not permanent. Choice B is incorrect as it addresses treating allergic reactions, not providing immunity. Choice D is incorrect as a booster dose stimulates the body to produce its antibodies, not providing ready-made antibodies.
Question 4 of 5
The nurse is caring for a patient with an infection. Which immunoglobulin should the nurse understand is produced first when an infection occurs?
Correct Answer: D
Rationale: Step-by-step rationale for why IgM is the correct answer: 1. IgM is the first immunoglobulin produced in response to an infection. 2. It is the largest immunoglobulin and is effective in agglutinating pathogens. 3. IgM activates the complement system to enhance immune response. 4. IgG is produced later in the immune response and provides long-term immunity. 5. IgD and IgE have specific roles but are not the initial immunoglobulins produced in response to infection.
Question 5 of 5
The bacterial cytoplasmic membrane contains:
Correct Answer: A
Rationale: The correct answer is A because bacterial cytoplasmic membranes typically contain ester-linked phospholipids but no sterols. Ester-linked phospholipids are the main component of bacterial cell membranes, providing structure and function. Sterols, like cholesterol, are not commonly found in bacterial membranes. Choice B is incorrect because sterols are not present in bacterial membranes. Choice C is incorrect because ether-linked phospholipids are more commonly found in archaea, not bacteria. Choice D is incorrect because sulfolipids and glycolipids are not primary components of bacterial cytoplasmic membranes.