Correct Answer: B

Rationale: The correct answer is B: canned tomato juice. Canned tomato juice is high in sodium content, which would not be suitable for a patient on a 2 gm sodium diet for heart failure. Sodium restriction is crucial in managing heart failure to reduce fluid retention and strain on the heart. Whole wheat bread, beef tenderloin strips, and apples are lower in sodium content compared to canned tomato juice, making them more appropriate choices for someone on a low-sodium diet.

Correct Answer: D

Rationale: The correct answer is D: Platelet count. Zidovudine (AZT) is known to cause bone marrow suppression, leading to decreased platelet production. Monitoring platelet count is crucial to detect early signs of thrombocytopenia, a common adverse effect of AZT. Rationale: A) RBC count: AZT can cause anemia, not specifically affecting the RBC count. B) Serum calcium: AZT does not typically affect calcium levels. C) Fasting blood glucose: AZT can cause hyperglycemia, but fasting blood glucose monitoring is not as critical as monitoring platelet count for AZT therapy.

Correct Answer: A

Rationale: The correct answer is A: Bladder control. This is the major early problem for Mr. Gabatan because urinary retention is a common complication post-surgery, especially for older males like him. Bladder control is essential for preventing urinary tract infections and maintaining overall health. Quadriceps setting (B) and client education (C) are important but not as critical early on. Use of aids for ambulation (D) is important but not the major early problem compared to bladder control in this case.

Correct Answer: A

Rationale: The correct answer is A: Type I hypersensitivity reaction. In Type I hypersensitivity, anaphylactic reactions involve immediate IgE-mediated responses to allergens, leading to histamine release and potentially life-threatening symptoms. This type of reaction is characterized by rapid onset and systemic involvement. Choices B, C, and D are incorrect because Type III reactions involve immune complex deposition leading to inflammation (B), Type II reactions involve cytotoxic antibodies targeting cells (C), and Type IV reactions involve delayed cell-mediated responses (D).

Correct Answer: C

Rationale: The correct initial action for the nurse is to choose option C: Notify the physician. Increasing oxygen without a healthcare provider's order can be harmful, especially in COPD patients prone to retaining carbon dioxide. The nurse should communicate the situation to the physician to assess the client's condition and adjust the oxygen therapy appropriately. Option A is incorrect as it neglects the potential risks of high oxygen levels. Option B is incorrect as immediate decrease without proper assessment can be dangerous. Option D is not the priority when the client's oxygen therapy needs evaluation.