Correct Answer: B

Rationale: The correct answer is B: Spinach and beef. Spinach is a good source of non-heme iron, while beef provides heme iron, both essential for treating iron deficiency anemia. Yogurt and mozzarella (choice A) are not significant sources of iron. Fish and cottage cheese (choice C) do not provide as much iron as spinach and beef. Turkey slices and milk (choice D) are also not as rich in iron compared to spinach and beef.

Correct Answer: D

Rationale: After a pericardiocentesis, the nurse should implement multiple interventions to monitor the client's condition closely. Monitoring vital signs every 15 minutes for the first hour is crucial to detect any immediate changes that may indicate complications. Evaluating the client's cardiac rhythm is important to identify any arrhythmias that may occur due to the procedure. Recording the amount of fluid removed is essential to calculate fluid balance and ensure accurate monitoring of the client's status. Therefore, all the interventions mentioned are necessary to detect and manage any potential issues post-pericardiocentesis. Choices A, B, and C are all essential components of post-procedural care and should be implemented to ensure the client's safety and well-being.

Correct Answer: A

Rationale: The correct answer is A. Lying flat in the supine position for 12 hours after a renal biopsy helps prevent bleeding, which is crucial for the client's recovery. This position aids in applying pressure to the biopsy site, reducing the risk of bleeding and ensuring optimal healing. Choices B, C, and D do not directly relate to compliance with client teaching after a renal biopsy. Continuing oral fluids restriction, changing the dressing, or activating a patient-controlled analgesia pump are not specific instructions aimed at promoting recovery and preventing complications post renal biopsy.

Correct Answer: B

Rationale: The correct answer is B: Iodine. Iodine is crucial for the production of thyroid hormones. A deficiency in iodine can lead to hypothyroidism. Calcium (Choice A) is important for bone health but is not directly related to thyroid function. Vitamin C (Choice C) is essential for the immune system and skin health but does not play a significant role in thyroid function. Iron (Choice D) is vital for red blood cell production and oxygen transport but is not specifically relevant to hypothyroidism.

Correct Answer: C

Rationale: The correct answer is to wear extra warm clothing during cold exposure. This instruction is crucial for managing Raynaud's phenomenon as it helps prevent vasospasms triggered by cold temperatures. Choice A is incorrect because exacerbations can occur in any season. Choice B is not directly related to managing Raynaud's phenomenon. Choice D is also irrelevant as direct sunlight exposure does not typically worsen symptoms of Raynaud's phenomenon.