Correct Answer: C

Rationale: The most appropriate question for the nurse to ask the client in this situation is whether they have any active lesions due to the history of herpes simplex virus. This is crucial to assess the risk of transmission to the newborn during labor. Option A is not the priority in this case as the focus is on the client's history of herpes simplex virus. Option B is important but does not directly relate to the risk of herpes simplex virus transmission. Option D is unrelated to the client's condition and the current situation.

Correct Answer: A

Rationale: The correct instruction for managing heartburn during pregnancy is to eat small, frequent meals. This helps prevent heartburn by reducing gastric distention. Option B, drinking a glass of milk with each meal, may exacerbate heartburn in some individuals due to its fat content. Option C, lying down after meals, can worsen heartburn as it allows stomach acid to flow back into the esophagus. Option D, drinking plenty of fluids with meals, can also contribute to heartburn by distending the stomach. Therefore, the best advice for managing heartburn during pregnancy is to eat small, frequent meals.

Correct Answer: D

Rationale: The correct answer is to monitor the client's respiratory rate. When a client is receiving opioids, the priority assessment is the respiratory rate since opioids can lead to respiratory depression. Monitoring urinary output, blood pressure, and constipation are also important but not the priority in this scenario.

Correct Answer: A

Rationale: The correct answer is to monitor INR for a patient on warfarin therapy. INR monitoring is crucial as it helps assess the therapeutic effectiveness and safety of warfarin. INR stands for International Normalized Ratio, and it measures the blood's ability to clot. Monitoring potassium levels (Choice B) is not specific to warfarin therapy. Monitoring platelet count (Choice C) is important but not the primary lab value for assessing warfarin therapy. Monitoring sodium levels (Choice D) is not directly related to warfarin therapy.

Correct Answer: A

Rationale: The appropriate nursing action for a patient experiencing an acute allergic reaction is to administer antihistamines. Antihistamines work by blocking the action of histamine, a chemical released during an allergic reaction, and can help relieve symptoms such as itching, swelling, and hives. Corticosteroids are used for severe allergic reactions not responding to antihistamines, as they have anti-inflammatory properties. Oxygen is administered in cases of respiratory distress, while bronchodilators are used for bronchospasms. However, the first-line intervention for an acute allergic reaction is antihistamines.