Correct Answer: D

Rationale: The correct intervention for a client receiving radiation therapy to the head and neck is to avoid exposure to direct sunlight. Direct sunlight should be avoided to protect the skin from further irritation and damage caused by the radiation therapy. Instructing the client to use an alcohol-free mouthwash is important to prevent irritation and maintain oral hygiene, making choice A incorrect. Applying heat packs to the radiation site is contraindicated as heat can further aggravate the skin, making choice B incorrect. Providing a diet low in carbohydrates is not directly related to radiation therapy to the head and neck, so choice C is also incorrect.

Correct Answer: C

Rationale: The correct answer is C. Clients on warfarin therapy need to have their International Normalized Ratio (INR) checked regularly to monitor the medication's effectiveness and prevent complications like clotting or bleeding. Option A is incorrect because increasing leafy green vegetables can affect INR levels due to their vitamin K content. Option B is incorrect as grapefruit juice is not a significant concern with warfarin. Option D is important for medication adherence but does not specifically address the monitoring aspect required for warfarin therapy.

Correct Answer: A

Rationale: Monitoring the dressing site daily is crucial for detecting early signs of infection in patients with central lines. Checking for redness and swelling (choice B) is important but may indicate a more advanced stage of infection. Monitoring for fever (choice C) can also be a sign of infection, but it is a later manifestation. Flushing the central line (choice D) is necessary for maintaining patency but does not directly monitor for infection.

Correct Answer: C

Rationale: The correct answer is C: Monitor the client's respiratory rate. When a client is receiving opioid analgesics, the priority assessment is monitoring respiratory rate. Opioids can cause respiratory depression, so it is crucial to assess the client's breathing to detect any signs of respiratory distress promptly. Checking the client's blood pressure (Choice A) and urinary output (Choice B) are important assessments too, but they are not the priority when compared to ensuring adequate respiratory function. Assessing the client's pain level (Choice D) is essential for overall care but is not the priority assessment when the client is on opioids, as respiratory status takes precedence.

Correct Answer: C

Rationale: The correct answer is C, Serum albumin level. Monitoring the serum albumin level helps assess the nutritional effectiveness of total parenteral nutrition (TPN). Serum albumin is a protein that reflects the long-term nutritional status of a patient. Serum calcium level (choice A) is not directly related to TPN effectiveness. Blood glucose level (choice B) is important to monitor in diabetic patients but is not the primary indicator of TPN efficacy. Serum sodium level (choice D) is more related to fluid balance and electrolyte status rather than the effectiveness of TPN.