Nursing Elites

1. 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.

2. What is the primary role of albumin in the blood?

• A. Transport oxygen throughout the body.
• B. Serve as a key clotting factor.
• C. Maintain osmotic pressure and fluid balance.
• D. Act as an immune response molecule.

Correct answer: C

Rationale: The correct answer is C: Maintain osmotic pressure and fluid balance. Albumin plays a crucial role in maintaining osmotic pressure by helping to retain fluid within the blood vessels. This function is essential for regulating blood volume and preventing fluid from leaking out into tissues. Choices A, B, and D are incorrect because albumin is not primarily responsible for transporting oxygen, acting as a clotting factor, or functioning as an immune response molecule in the blood.

3. A patient has suffered from several infections in the last 6 months and unexplained impaired wound healing. What assessment should the nurse prioritize?

• A. Assess for pain.
• B. Assess for nutritional deficiencies.
• C. Assess genetic tendency for infection.
• D. Assess for edema and decreased hemoglobin.

Correct answer: B

Rationale: In this scenario, the patient's history of multiple infections and impaired wound healing indicates a potential issue with their immune system and overall health. Therefore, the nurse should prioritize assessing for nutritional deficiencies. Proper nutrition is essential for a healthy immune response and wound healing. Assessing for pain (choice A) may be important but addressing the root cause of the recurrent infections and impaired wound healing is crucial. Genetic tendency for infection (choice C) would be a less immediate concern compared to assessing for nutritional deficiencies. Edema and decreased hemoglobin (choice D) are not the most relevant assessments based on the patient's symptoms.

4. A patient who is being administered isoniazid (INH) for tuberculosis has a yellow color in the sclera of her eye. What other finding would lead you to believe that hepatotoxicity has developed?

• A. Diarrhea
• B. Numbness
• C. Diminished vision
• D. Light-colored stools

Correct answer: A

Rationale: The correct answer is A: Diarrhea. Hepatotoxicity caused by isoniazid can present with various symptoms, including yellow discoloration of the sclera of the eyes, which indicates jaundice. Another common sign of hepatotoxicity is gastrointestinal symptoms such as nausea, vomiting, and diarrhea, which can occur due to liver dysfunction affecting bile production and digestion. Numbness (choice B) is more commonly associated with peripheral neuropathy caused by isoniazid, while diminished vision (choice C) and light-colored stools (choice D) are not typical manifestations of hepatotoxicity.

5. Which of the following statements indicates more teaching is needed regarding secondary lymph organs? ________is/are a secondary lymph organ.

• A. The spleen
• B. Peyer's patches
• C. Adenoids
• D. The liver

Correct answer: D

Rationale: The correct answer is D, 'The liver.' The liver is not a secondary lymph organ. Secondary lymph organs are primarily involved in the immune response, such as the spleen, Peyer's patches, and adenoids. The spleen filters blood and is essential for immune function. Peyer's patches are located in the small intestine and help protect against pathogens. Adenoids are located in the throat and play a role in immune defense. Therefore, the liver is the incorrect choice as it is not part of the secondary lymph organ system.

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