ATI RN
Immune System ATI Quizlet Questions
Question 1 of 5
While caring for an 84-year-old patient, the nurse monitors the patient’s fluid and electrolyte balance, recognizing what as a normal change of aging?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
One principal function of complement is to
Correct Answer: C
Rationale: The correct answer is C because complement proteins bind antibodies attached to cell surfaces and cause cell lysis, enhancing immune response. Choice A is incorrect as complement does not inactivate performs. Choice B is incorrect as complement does not mediate the release of histamine. Choice D is incorrect as phagocytosis is a function of phagocytes, not complement proteins. Therefore, the correct function of complement is to enhance immune response by binding antibodies and causing cell lysis.
Question 3 of 5
The immunoglobulin Joining chain (J-chain) is
Correct Answer: C
Rationale: Step-by-step rationale: 1. The J-chain is a polypeptide involved in the formation of polymeric IgM and IgA. 2. Polymeric forms of IgM and IgA contain the J-chain, aiding in their multimeric structure. 3. The J-chain is not exclusive to T-cells or neutrophils, making choices A and B incorrect. 4. IgE is associated with FcεRI receptors for histamine release, so choice D is incorrect. Summary: The correct answer is C because the J-chain is specifically associated with the multimeric forms of IgM and IgA, helping to form their structure. Choices A, B, and D are incorrect as the J-chain is not solely produced by T-cells, neutrophils, or associated with IgE for histamine release.
Question 4 of 5
An older adult has fallen and sprained his ankle in a local park. Which action should the responder perform first?
Correct Answer: A
Rationale: The correct action is to elevate the foot first. Elevating the foot helps reduce swelling and pain by promoting better circulation. This step is crucial in the initial management of a sprained ankle. Applying ice and administering aspirin can come after elevating the foot. Assisting with ambulation should only be considered after the initial measures are taken to address the sprained ankle.
Question 5 of 5
The patient in a long arm cast (from below the shoulder to the wrist, with a 90-degree elbow flexion) complains of a burning sensation over the elbow. The nurse's initial intervention should be:
Correct Answer: B
Rationale: The correct answer is B: Check to see if the cast is properly supported. The burning sensation over the elbow could indicate nerve compression due to improper cast positioning. By checking if the cast is properly supported, the nurse can ensure that there is no pressure on the nerves causing the burning sensation. Elevating the casted arm (choice A) may not address the root cause of the burning sensation. Notifying the charge nurse of developing pressure ulcer (choice C) is premature without confirming the cause of the burning sensation. Cutting a "window" in the cast (choice D) should be a last resort after ruling out other issues.