Correct Answer: D

Rationale: Administering nitroglycerin is the priority action when a client is experiencing chest pain as it helps alleviate the pain caused by reduced blood flow to the heart. Oxygen can be beneficial, but nitroglycerin takes precedence in this situation. Aspirin can also be given, but nitroglycerin is the priority. Performing an ECG can provide valuable information but is not the first action to take in this scenario.

Correct Answer: C

Rationale: The correct answer is C: Oxygen saturation. Following abdominal surgery, the priority assessment is to ensure adequate oxygenation. Monitoring oxygen saturation is crucial as the client may be at risk of respiratory complications due to the effects of anesthesia, pain medications, and the surgical procedure itself. Assessing urinary output is important for monitoring kidney function but is not the priority immediately postoperatively. Pain level assessment is essential for the client's comfort but does not take precedence over ensuring oxygen saturation. Checking the abdominal dressing is important for wound assessment, but ensuring adequate oxygenation is the priority in the immediate postoperative period.

Correct Answer: B

Rationale: The correct answer is B: Spinach. Spinach is high in vitamin K, which can interfere with the effectiveness of warfarin, an anticoagulant medication. Patients taking warfarin should limit foods high in vitamin K to maintain the medication's effectiveness and consistent dosage. Bananas, potatoes, and apples are not high in vitamin K and do not typically interfere with warfarin therapy.

Correct Answer: B

Rationale: The correct answer is B: Decreased anginal pain. Verapamil is a calcium channel blocker used to relieve angina by reducing myocardial oxygen demand. Monitoring for decreased anginal pain is essential as it indicates a therapeutic response to the medication. Choices A, C, and D are incorrect as verapamil's primary goal in this context is not to decrease blood pressure, heart rate, or anxiety.

Correct Answer: D

Rationale: The correct way to use a cane for a client with left hemiparesis is to hold the cane on the right side to provide support for the weaker left leg. This allows for better stability and weight distribution. Placing the cane approximately 61 cm (24 in) in front of their feet before advancing (Choice A) is not necessary and may lead to improper gait. Advancing the stronger leg and the cane together (Choice B) is incorrect as it does not provide support for the weaker leg. Removing the rubber tip when using the cane (Choice C) is also incorrect as the rubber tip helps provide traction and stability.