ATI LPN
Quiz Questions Hematologic System Questions
Question 1 of 5
What is a specific consideration for patients taking celecoxib?
Correct Answer: A
Rationale: Step-by-step rationale: 1. Celecoxib is a selective COX-2 inhibitor used for pain and inflammation. 2. Studies have shown celecoxib increases the risk of cardiac events. 3. This is due to its mechanism of action affecting prostaglandins. 4. Prostaglandins play a role in cardiovascular homeostasis. Summary: - Choice A is correct as cardiac risks are a specific consideration for celecoxib. - Choices B, C, and D are incorrect as celecoxib is not primarily associated with increased risk of GI bleeding, renal failure, or CNS effects.
Question 2 of 5
Which medication is used to treat acute gout attacks?
Correct Answer: A
Rationale: The correct answer is A: Colchicine. Colchicine is used to treat acute gout attacks by reducing inflammation and pain caused by uric acid crystals in the joints. It works by inhibiting the inflammatory response to these crystals. Allopurinol, Febuxostat, and Probenecid are used for long-term management of gout by lowering uric acid levels, not for acute attacks. Colchicine is specifically indicated for treating acute gout attacks due to its anti-inflammatory properties.
Question 3 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 4 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 5 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.