Correct Answer: B

Rationale: When a client develops redness and warmth at the IV site, it is indicative of phlebitis, which is inflammation of the vein. The next step for the nurse should be to discontinue the IV and notify the healthcare provider. Applying a cold compress may provide temporary relief but does not address the underlying issue. Monitoring for infection is important, but in this case, the presence of redness and warmth suggests phlebitis, not infection. Increasing the IV flow rate can exacerbate the inflammation and should be avoided.

Correct Answer: A

Rationale: The correct answer is A: Sepsis and respiratory failure. Untreated pneumonia can lead to severe complications such as sepsis, which is a life-threatening response to infection, and respiratory failure, where the lungs can no longer provide enough oxygen to the body. Heart failure and kidney failure (choice B) are not direct complications of untreated pneumonia. Pulmonary embolism and electrolyte imbalance (choice C) are also not commonly associated with untreated pneumonia. Liver failure and electrolyte imbalance (choice D) are not typical complications of pneumonia.

Correct Answer: B

Rationale: The priority nursing action for a client with dehydration is to monitor electrolyte levels. Dehydration can cause imbalances in electrolytes such as sodium and potassium, affecting essential bodily functions. Monitoring electrolyte levels is crucial to promptly identify and correct any imbalances. While administering oral fluids (Choice A) is vital in treating dehydration, monitoring electrolyte levels takes precedence as it directly addresses the underlying imbalance. Administering antiemetics (Choice C) may be necessary for nausea and vomiting but is not the priority over electrolyte monitoring. Encouraging bed rest (Choice D) can conserve energy but is not as critical as monitoring electrolyte levels to prevent complications related to electrolyte imbalances.

Correct Answer: A

Rationale: The correct answer is A: Ensure the injection produces a wheal on the skin. A wheal indicates that the PPD has been administered correctly, allowing for the proper interpretation of results. Administering the injection in the client's thigh (choice B) is not the recommended site for PPD administration; it should be administered intradermally. Using an 18-gauge needle (choice C) is unnecessary and not the standard practice for PPD administration as a smaller gauge needle is preferred for intradermal injections. Massaging the site after injection (choice D) can lead to inaccurate results by dispersing the solution, so it is important to avoid touching the site after the injection to prevent altering the test results.

Correct Answer: B

Rationale: Reducing sodium intake is crucial for managing hypertension as excess sodium can lead to increased blood pressure. High-fat foods (Choice A) are not recommended as they can contribute to heart issues. While dairy products (Choice C) should be consumed in moderation, they are not specifically targeted in hypertension management. High-protein foods (Choice D) are not the priority; rather, reducing sodium intake takes precedence due to its direct impact on blood pressure levels.