ATI RN
Adaptive Immune System Quizlet Questions
Question 1 of 5
Many immune cells listed below are found in the absence of infection in the lamina propria of the gut with the exception of:
Correct Answer: A
Rationale: Neutrophils are typically not found in the lamina propria of the gut in the absence of infection because they are primarily involved in the acute inflammatory response to infections. Macrophages, plasma cells, and T cells are commonly present in the gut lamina propria to maintain immune homeostasis and respond to antigens. Neutrophils are more abundant in tissues during active infection due to their role in phagocytosis and inflammation. Therefore, the correct answer is A: Neutrophils.
Question 2 of 5
Polyclonal antibodies made in response to a given antigen will be:
Correct Answer: D
Rationale: Step-by-step rationale for why Answer D is correct: 1. Polyclonal antibodies are produced by multiple B cell clones in response to an antigen (Choice A). 2. These antibodies have varying affinities due to the diversity of B cell clones involved (Choice B). 3. Different antibody classes, such as IgM, IgG, IgA, etc., are produced by different B cells (Choice C). 4. Therefore, all options are correct as polyclonal antibodies exhibit these characteristics.
Question 3 of 5
Amino acids are building blocks of
Correct Answer: D
Rationale: The correct answer is D: Proteins. Amino acids are the building blocks of proteins because they are linked together in a specific sequence to form protein chains. Proteins are essential for various biological functions in the body. Incorrect options: A: Carbohydrates - Carbohydrates are made up of sugar molecules, not amino acids. B: Nucleic acids - Nucleic acids, like DNA and RNA, are made up of nucleotides, not amino acids. C: Lipids - Lipids are composed of fatty acids and glycerol, not amino acids.
Question 4 of 5
The nurse determines that a patient has long-term immunity against a disease. Which part of the immune system should the nurse recognize is responsible for this patient's long-term immunity?
Correct Answer: B
Rationale: The correct answer is B: IgG. IgG is an immunoglobulin that provides long-term immunity by recognizing and neutralizing pathogens. It is produced by plasma cells in response to an infection, allowing the body to remember the pathogen and mount a quicker and more effective immune response upon re-exposure. IgE is involved in allergic reactions, not long-term immunity. Mast cells are involved in allergic responses and inflammation, not long-term immunity. Plasma cells produce antibodies, including IgG, but the plasma cells themselves are not responsible for long-term immunity.
Question 5 of 5
The nurse is reinforcing teaching to a person being tested for HIV in a clinic. Which test should the nurse explain is done first in HIV testing?
Correct Answer: A
Rationale: The correct answer is A: ELISA test. The ELISA test is typically the initial screening test for HIV due to its high sensitivity in detecting HIV antibodies. It is cost-effective and quick. Western blot test is a confirmatory test used if ELISA is positive. Viral load studies monitor the progression of the disease but are not typically done first. Rheumatoid factor test is unrelated to HIV testing. Therefore, the ELISA test is the most appropriate initial step in HIV testing.