ATI LPN
Multiple Choice Questions on Immune System Questions
Question 1 of 5
Neutrophils, bands, metamyelocytes, myelocytes, basophils, eosinophils, platelets increased. Suggests?
Correct Answer: C
Rationale: Step 1: Neutrophils, bands, metamyelocytes, myelocytes increased indicates a myeloproliferative disorder. Step 2: Basophils, eosinophils increased suggest a myeloid origin. Step 3: Platelets increased is common in chronic myelocytic leukemia (CML) due to myeloid proliferation. Summary: A is incorrect as it is associated with abnormal lymphoid cells. B is incorrect as it is a lymphoid disorder. D is incorrect as it is a lymphoid leukemia.
Question 2 of 5
True about basophils:
Correct Answer: A
Rationale: Step 1: Basophils are a type of leukocyte, so they are included in the total leukocyte count. Step 2: Basophils make up less than 0.2% of total leukocytes in the blood. Step 3: Therefore, choice A is correct as basophils comprise a very small percentage of leukocytes. Summary: Choice B is incorrect as basophil granules stain with basic dyes like Toluidine blue. Choice C is incorrect as basophils have a shorter lifespan compared to several months. Choice D is incorrect as basophils play a key role in anaphylaxis through the release of histamine.
Question 3 of 5
Spleen functions include all of the following except?
Correct Answer: B
Rationale: The correct answer is B because the spleen does not store extra iron in ferritin. The spleen functions primarily to destroy old or defective red blood cells (choice A), break down hemoglobin (choice C), and store platelets not circulating (choice D). The spleen does not have a significant role in iron storage; that function is mainly carried out by the liver and bone marrow. Therefore, choice B is incorrect.
Question 4 of 5
Since the emergence of the human immunodeficiency virus (HIV), there have been significant changes in epidemiologic trends. At present, members of which group are most affected by new cases of HIV?
Correct Answer: A
Rationale: The correct answer is A: Male-to-male sexual contact. This is because statistics show that men who have sex with men (MSM) are the group most affected by new cases of HIV. MSM is considered a high-risk group due to various factors like higher prevalence of HIV within the community, higher rates of unprotected sex, and multiple sexual partners. Choice B is incorrect as heterosexual contact has a lower incidence rate compared to MSM. Choice C is incorrect as the combination of male-to-male sexual contact with injection drug use is less common than MSM alone. Choice D is incorrect because age group 25 to 29 may not necessarily be the most affected group in terms of new HIV cases.
Question 5 of 5
A nurse is caring for a client hospitalized with AIDS. A friend comes to visit the client and privately asks the nurse about the risk of contracting HIV when visiting the client. What is the nurse's best response?
Correct Answer: C
Rationale: The correct answer is C: "AIDS isn't transmitted by casual contact." This is the best response because it is accurate and provides the friend with correct information. HIV is not transmitted through casual contact, so the friend visiting the client is not at risk of contracting the virus. A: "Do you think that you might already have HIV?" - This response is inappropriate as it raises unnecessary concerns and does not address the friend's question directly. B: "Your immune system is likely very healthy." - This response is irrelevant to the friend's concern about contracting HIV and does not provide any information related to the risk of transmission. D: "You can't normally contract AIDS in a hospital setting." - While this statement is generally true due to universal precautions in healthcare settings, it does not directly address the friend's specific concern about HIV transmission through visiting the client.