ATI LPN
Questions About the Immune System Questions
Question 1 of 5
The nurse implements which of the following for the client who is starting a Schilling test?
Correct Answer: B
Rationale: The correct answer is B: Starting a 24- to 48-hour urine specimen collection. The Schilling test is used to diagnose pernicious anemia by evaluating vitamin B12 absorption. Collecting urine over 24-48 hours helps measure excretion of radioactive B12, indicating absorption. Administering methylcellulose (A) is not part of the Schilling test. Maintaining NPO status (C) is unnecessary for this test. Starting a 72-hour stool specimen collection (D) is not relevant as the test primarily focuses on urine collection.
Question 2 of 5
Hypocupremia is seen in
Correct Answer: D
Rationale: Hypocupremia is a condition characterized by low levels of copper in the blood. Both osteoporosis and nephrotic disease can lead to copper deficiency, as they affect copper absorption and utilization. Similarly, sprue and celiac disease can also cause hypocupremia due to malabsorption issues. Therefore, the correct answer is D, as both A and B choices are conditions associated with hypocupremia. Choices C (cardiovascular disease, colon cancer) are not directly linked to copper deficiency, making them incorrect.
Question 3 of 5
Patients that are sensitive to aspirin can take:
Correct Answer: B
Rationale: The correct answer is B: Clopidogrel. Patients sensitive to aspirin can take clopidogrel as it is an antiplatelet agent that works differently from aspirin, making it suitable for those who cannot tolerate aspirin. Sulfinpyrazone and ticlopidine are not recommended for patients sensitive to aspirin due to potential cross-reactivity. Choice D is incorrect as sulfinpyrazone is not recommended for aspirin-sensitive patients.
Question 4 of 5
Absolute lymphocytosis and thrombocytopenia (<100,000/mm^3) with or without lymphadenopathy, hepatomegaly, splenomegaly, or anemia is what stage in CLL prognosis Scoring-Rai Staging System?
Correct Answer: D
Rationale: The correct answer is D: Stage III in the Rai Staging System for CLL prognosis. In CLL, Stage III is characterized by absolute lymphocytosis, thrombocytopenia (<100,000/mm^3), and one or more of the following: lymphadenopathy, hepatomegaly, splenomegaly, or anemia. This stage indicates advanced disease with more aggressive features and a poorer prognosis compared to earlier stages. Explanation of other choices: A: Stage 0 - This stage is characterized by lymphocytosis without any other symptoms or signs of disease progression. B: Stage I - In Stage I, there is lymphocytosis with lymphadenopathy. C: Stage II - In Stage II, there is lymphocytosis with hepatomegaly and/or splenomegaly, without anemia or thrombocytopenia. Therefore, based on the presence of absolute lymphocytosis, thrombocytopen
Question 5 of 5
The shape of a cell is maintained by which of the following?
Correct Answer: A
Rationale: The correct answer is A: Microtubules. Microtubules are structural components of a cell that help maintain its shape by providing support and stability. They form a network of filaments that serve as tracks for organelle movement and help in cell division. Spindle fibers (choice B) are involved in cell division, ribosomes (choice C) are responsible for protein synthesis, and centrioles (choice D) play a role in organizing microtubules during cell division. However, only microtubules are directly responsible for maintaining the shape of a cell through their structural support function.