ATI RN
ATI Hematologic System Test Questions
Question 1 of 5
A laboratory study is conducted to determine the optimal usage of platelets for transfusion. The blood bank inventory along with the transfusion records and medical records of subjects who were recipients of platelet transfusion are reviewed. Which of the following conclusions is most likely to be made from this study?
Correct Answer: B
Rationale: Step-by-step rationale for why answer B is correct: 1. Autoimmune thrombocytopenia is a condition where the body's immune system attacks and destroys its own platelets. 2. Platelet transfusions in patients with autoimmune thrombocytopenia are less likely to be successful due to the underlying immune response. 3. Reviewing transfusion records of subjects with this condition would likely show a pattern of unsuccessful platelet transfusions. 4. This conclusion is supported by medical knowledge and understanding of autoimmune thrombocytopenia. Summary: - Choice A is incorrect because frozen storage of platelets does not necessarily increase units available in the context of the study. - Choice C is incorrect as platelet units can carry a risk of transmission for hepatitis C infection. - Choice D is incorrect as the preference for pooled donor platelets over single-donor platelets is not a conclusion that can be drawn from the study.
Question 2 of 5
You are discussing prognosis with the mother of a patient with stage 3, group III rhabdomyosarcoma. Which of the following is the most unfavorable primary site?
Correct Answer: A
Rationale: The correct answer is A: Extremity. Rhabdomyosarcoma has a better prognosis when located in the extremities compared to other sites due to easier surgical resection and less risk of metastasis. Prostate (B) is less common in children and has a poorer prognosis. Infratemporal fossa (C) and neck (D) sites have a higher risk of local invasion and metastasis, leading to a worse prognosis compared to extremity sites.
Question 3 of 5
A client is having a bone marrow aspiration and biopsy. What action by the nurse takes priority?
Correct Answer: B
Rationale: The correct answer is B: Ensure that valid consent is in the medical record. This is the priority because obtaining informed consent is essential before any invasive procedure like a bone marrow aspiration and biopsy. It ensures that the client understands the procedure, risks, benefits, and alternatives. Administering pain medication (A), having the client shower (C), and premedicating with sedatives (D) are important aspects of care but obtaining valid consent is crucial for legal and ethical reasons before proceeding with the procedure.
Question 4 of 5
An older client asks the nurse why 'people my age' have weaker immune systems than younger people. What responses by the nurse are best? (Select all that apply.)
Correct Answer: C
Rationale: Rationale: - As we age, there is a decrease in the production of plasma proteins, which are essential for immune function. - Lower levels of plasma proteins can lead to a weaker immune response. - This decline in plasma proteins can make older individuals more susceptible to infections. - Choices A, B, and D are incorrect as they do not directly address the impact of aging on immune system function.
Question 5 of 5
Which of the following requires IL-2 and IL-4 in the conversion of unilineage progenitor cell into mature circulating cell?
Correct Answer: D
Rationale: The correct answer is D: B lymphocyte. IL-2 and IL-4 are crucial for the differentiation of B lymphocytes from unilineage progenitor cells. IL-2 supports proliferation and survival of B cells, while IL-4 promotes their differentiation into mature circulating cells. Neutrophils, eosinophils, and basophils develop independently of IL-2 and IL-4. Neutrophils mainly require granulocyte colony-stimulating factor (G-CSF), eosinophils require IL-5, and basophils are influenced by IL-3 and IL-5. Therefore, the correct answer is D as B lymphocytes specifically rely on IL-2 and IL-4 for their maturation.