Correct Answer: D

Rationale: Elevating the head of the bed in a client with acute respiratory distress syndrome (ARDS) is essential to drain secretions and prevent aspiration. This position helps facilitate the removal of secretions from the airways, reducing the risk of aspiration pneumonia. Choices A, B, and C are incorrect as the primary reason for elevating the head of the bed in ARDS is to assist with secretion drainage and prevent complications associated with aspiration.

Correct Answer: A

Rationale: The correct answer is to increase the dose of levothyroxine. In hypothyroidism, the body does not produce enough thyroid hormone, leading to symptoms like lethargy and cold intolerance. Increasing the dose of levothyroxine, which is a synthetic thyroid hormone replacement, helps correct the deficiency and alleviates the symptoms. Choice B, administering antipyretic medication, is incorrect as antipyretics are used to reduce fever, not treat hypothyroidism symptoms. Choice C, providing a warm blanket and increasing room temperature, may provide temporary comfort but does not address the underlying hormonal deficiency. Choice D, increasing fluid intake, is important for overall health but does not directly address the symptoms of hypothyroidism.

Correct Answer: A

Rationale: Blurry vision in clients with type 1 diabetes may indicate hyperglycemia, which requires prompt assessment of recent blood glucose levels to determine the cause and appropriate intervention. Checking the client's hemoglobin A1C level (Choice B) is useful for assessing long-term glucose control, not for immediate management of blurry vision. Monitoring blood pressure (Choice C) is important in diabetes care but is not the most crucial assessment when blurry vision is reported. Examining the client's feet for signs of neuropathy (Choice D) is important in diabetic foot care but is not the priority when dealing with blurry vision.

Correct Answer: D

Rationale: The correct answer is D: 'Use diaphragmatic breathing to achieve better exhalation.' Diaphragmatic breathing is an essential intervention for clients with COPD as it helps improve exhalation and lung function, ultimately reducing symptoms over the long term. Option A is incorrect because high-flow oxygen during sleep is more relevant for clients with conditions like sleep apnea rather than COPD. Option B, 'Reduce risk factors for infection,' is important but not as specific to the long-term management of COPD as diaphragmatic breathing. Option C, 'Limit fluid intake to reduce secretions,' is not a recommended intervention for clients with COPD, as adequate hydration is crucial for maintaining respiratory health.

Correct Answer: B

Rationale: Verifying the correct placement of a nasogastric tube before each feeding is essential to prevent aspiration and ensure that the tube is properly positioned in the stomach or intestine. This action is a priority to maintain client safety. Flushing the tube with water every 4 hours is important for tube patency but is not the priority over verifying placement. Securing the tube with tape and keeping the head of the bed elevated are crucial but are considered secondary measures compared to confirming the correct tube placement.