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MSN 570 Advanced Pathophysiology Final 2024
1. A hemoglobin electrophoresis is done to evaluate for sickle cell disease. The report reveals the person has HbAS, which means the person:
- A. is normal with no sickle cell disease.
- B. is a sickle cell carrier.
- C. has sickle cell anemia.
- D. has thalassemia.
Correct answer: B
Rationale: The correct answer is that the person is a sickle cell carrier. In HbAS, 'Hb' stands for hemoglobin, 'A' indicates normal hemoglobin, and 'S' indicates the sickle cell trait. Individuals with HbAS are carriers of the sickle cell trait but do not have sickle cell disease. Choice A is incorrect because having the sickle cell trait means carrying the gene for sickle cell disease. Choice C is incorrect as sickle cell anemia is a different condition where individuals have two copies of the abnormal hemoglobin gene, resulting in the disease. Choice D is incorrect because thalassemia is a separate genetic disorder affecting the production of hemoglobin, not related to the sickle cell trait.
2. A client has experienced a pontine stroke which has resulted in severe hemiparesis. What priority assessment should the nurse perform prior to allowing the client to eat or drink from the food tray?
- A. Evaluate the client's gag reflex.
- B. Assess the client's bowel sounds.
- C. Check the client's pupil reaction.
- D. Monitor the client's heart rate.
Correct answer: A
Rationale: The correct answer is to evaluate the client's gag reflex. When a client has experienced a stroke resulting in severe hemiparesis, assessing the gag reflex is crucial before allowing them to eat or drink. This assessment helps prevent aspiration, a serious complication that can occur due to impaired swallowing ability. Assessing bowel sounds (Choice B), pupil reaction (Choice C), or heart rate (Choice D) are important assessments but are not the priority in this situation where the risk of aspiration is higher.
3. What laboratory tests should the nurse monitor regularly when a male patient is receiving androgen therapy?
- A. Monitor liver function tests regularly.
- B. Monitor renal function tests regularly.
- C. Monitor blood glucose levels regularly.
- D. Monitor complete blood count (CBC) regularly.
Correct answer: A
Rationale: The correct answer is to monitor liver function tests regularly when a male patient is receiving androgen therapy. Androgen therapy can impact liver function, making it crucial to monitor liver function tests to assess any potential adverse effects on the liver. Renal function tests (choice B) are not typically affected by androgen therapy and do not need specific monitoring for this treatment. Blood glucose levels (choice C) are more relevant in conditions like diabetes or with medications affecting blood sugar, not typically in androgen therapy. Complete blood count (CBC) (choice D) is not directly impacted by androgen therapy and is not a priority for monitoring in this context.
4. A 5-year-old male was diagnosed with normocytic-normochromic anemia. Which of the following anemias does the nurse suspect the patient has?
- A. Sideroblastic anemia
- B. Hemolytic anemia
- C. Pernicious anemia
- D. Iron deficiency anemia
Correct answer: B
Rationale: The correct answer is B, Hemolytic anemia. Normocytic-normochromic anemia is a type of anemia characterized by normal-sized and normal-colored red blood cells. Hemolytic anemia is a condition where red blood cells are destroyed prematurely, leading to normocytic-normochromic anemia. Sideroblastic anemia (Choice A) is characterized by ringed sideroblasts in the bone marrow. Pernicious anemia (Choice C) is due to vitamin B12 deficiency. Iron deficiency anemia (Choice D) is characterized by microcytic-hypochromic red blood cells.
5. Why is a beta-blocker prescribed to a client with a history of myocardial infarction?
- A. To reduce myocardial oxygen demand.
- B. To increase cardiac output.
- C. To prevent arrhythmias.
- D. To prevent the development of angina.
Correct answer: A
Rationale: The primary reason for administering a beta-blocker to a client with a history of myocardial infarction is to reduce myocardial oxygen demand. By reducing myocardial oxygen demand, beta-blockers help decrease the workload on the heart, making it easier for the heart to function effectively. This is crucial for clients with a history of myocardial infarction to prevent further damage to the heart. Choice B is incorrect because beta-blockers do not aim to increase cardiac output; instead, they help improve cardiac function by reducing workload. Choice C is incorrect because while beta-blockers can help prevent certain arrhythmias, the primary reason for their use in this case is to reduce myocardial oxygen demand. Choice D is incorrect as preventing angina is not the primary purpose of administering beta-blockers to a client with a history of myocardial infarction.
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