Correct Answer: A

Rationale: The correct answer is A: Yankauer catheter. The Yankauer catheter is specifically designed for oral suctioning, making it the most appropriate choice for this task. Choice B, the Bulb syringe, is typically used for suctioning small amounts of liquid from the nose or mouth. Choice C, the Suction catheter, is more commonly used for deep suctioning in the trachea or bronchi. Choice D, Sterile gloves, are necessary for infection control but are not the primary supply used for oral suctioning.

Correct Answer: C

Rationale: Increasing fiber intake is the most appropriate nursing intervention for a client experiencing constipation. Fiber helps add bulk to the stool, making it easier to pass and promoting regular bowel movements. Encouraging the client to remain in bed may exacerbate constipation by reducing movement and promoting inactivity. While stool softeners can be beneficial, they are typically used as a short-term solution and may not address the underlying issue of low fiber intake. Regular exercise is important for overall bowel health; however, in the immediate management of constipation, increasing fiber intake is the most effective intervention.

Correct Answer: A

Rationale: Shortness of breath is the main symptom of left-sided heart failure because it results from pulmonary congestion due to fluid buildup in the lungs. Edema, increased heart rate, and decreased urine output are associated with right-sided heart failure rather than left-sided heart failure.

Correct Answer: A

Rationale: The key considerations for managing a patient with COPD include airway management, ensuring adequate oxygenation, promoting smoking cessation, and incorporating pulmonary rehabilitation. While airway management is crucial for maintaining patency and preventing exacerbations, oxygen therapy helps improve oxygen levels in the blood. Smoking cessation is essential to slow down disease progression and reduce exacerbation risk. Pulmonary rehabilitation plays a vital role in enhancing exercise tolerance and overall quality of life for COPD patients. Therefore, while all options are important in managing COPD, airway management is the most critical aspect.

Correct Answer: D

Rationale: The correct answer is to apply ice to the affected knee for 24-48 hours. Applying ice helps to reduce inflammation and pain after knee surgery, promoting healing. Choice A is incorrect because heat is not recommended postoperatively, as it can increase swelling. Choice B is incorrect because pillows should be placed under the knee to keep it elevated. Choice C is incorrect because early mobilization is essential for preventing complications such as blood clots.