ATI LPN
Quiz Questions Hematologic System Questions
Question 1 of 5
Which medication is a monoclonal antibody used for SLE?
Correct Answer: A
Rationale: The correct answer is A, Belimumab. Belimumab is a monoclonal antibody that targets B-lymphocyte stimulator protein, specifically approved for systemic lupus erythematosus (SLE). It helps reduce autoantibody production and inflammation in SLE patients. Methotrexate (B), Hydroxychloroquine (C), and Leflunomide (D) are not monoclonal antibodies. Methotrexate is a DMARD, Hydroxychloroquine is an antimalarial, and Leflunomide is a DMARD used for rheumatoid arthritis, not specifically for SLE.
Question 2 of 5
A nurse has presented an educational program to a community group on Lyme disease. What statement by a participant indicates the need to review the material?
Correct Answer: C
Rationale: Rationale: Choice C is the correct answer because it states an incorrect fact about Lyme disease. Lyme disease, if left untreated, is not usually fatal. It can lead to serious complications but is rarely fatal. This indicates a need for review. Choices A, B, and D are incorrect as they provide accurate information about Lyme disease prevention, symptoms, and treatment duration, respectively.
Question 3 of 5
When examining a peripheral blood film, you observe red cells showing a large variation in size. The following term is used to describe this finding:
Correct Answer: A
Rationale: Step-by-step rationale for why choice A (Anisocytosis) is correct: 1. Anisocytosis refers to a condition where red blood cells vary significantly in size. 2. In this scenario, observing a large variation in red cell size on a blood film fits the definition of anisocytosis. 3. Anisocytosis is commonly associated with conditions like iron deficiency anemia or certain genetic disorders. 4. Therefore, in the context of the question, anisocytosis is the most appropriate term to describe the finding. Summary: - Choice A (Anisocytosis) is correct as it accurately describes the observed variation in red cell size. - Choices B, C, and D (Poikilocytosis, Haemachromatosis, Polychromasia) are incorrect as they do not specifically address the variation in cell size as seen in anisocytosis.
Question 4 of 5
Molecules that can react with antibodies but cannot induce an immune reaction by themselves are called:
Correct Answer: C
Rationale: The correct answer is C: Haptens. Haptens are molecules that can react with antibodies but cannot induce an immune response on their own. They need to bind to a larger carrier molecule to trigger an immune reaction. Antigens (A) are molecules that can induce an immune response. Immunoglobulins (B) are antibodies produced by the immune system. Immunogens (D) are substances capable of inducing an immune response by themselves. Therefore, haptens best fit the description provided in the question.
Question 5 of 5
Which interventions apply in the care of a client at high risk for an allergic response to a latex allergy?
Correct Answer: A
Rationale: The correct answer is A: Use nonlatex gloves. This intervention is crucial in preventing an allergic response in a client with a latex allergy. Latex gloves are a common source of exposure to latex allergens, so using nonlatex gloves reduces the risk of triggering an allergic reaction. Explanation: 1. Latex gloves contain latex proteins that can cause allergic reactions in sensitive individuals. 2. By using nonlatex gloves, the risk of direct contact with latex allergens is minimized. 3. This intervention is a practical and effective measure to protect the client from exposure to latex. 4. It is a proactive approach to prevent potential allergic responses and promote client safety. Summary of other choices: B: Placing the client in a private room only does not directly address the risk of latex exposure. C: Using a blood pressure cuff from an electronic device only is not specific to preventing latex exposure. D: Avoiding medication vials with rubber stoppers is important but does not directly address the use of latex