Correct Answer: D

Rationale: In acute respiratory distress syndrome (ARDS), placing the client in a prone position helps improve ventilation-perfusion matching and oxygenation. This position can optimize lung function and is a beneficial intervention for clients with ARDS. Administering low-flow oxygen via nasal cannula, encouraging oral intake of excess fluids, or offering high-protein and high-carbohydrate foods are not primary interventions for ARDS and may not directly address the respiratory distress experienced by the client.

Correct Answer: C

Rationale: In respiratory acidosis, there is an excess of carbon dioxide (PaCO2 > 45 mm Hg) leading to a decrease in pH (<7.35). The given values of a pH of 7.3 and PaCO2 of 50 mm Hg indicate respiratory acidosis. Metabolic acidosis involves a primary decrease in bicarbonate levels with a compensatory decrease in PaCO2 to maintain balance. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory alkalosis is marked by low PaCO2 and increased pH levels.

Correct Answer: D

Rationale: When a client with a chest tube connected to wall suction complains of chest burning, it may indicate that the tube is irritating or compressing nearby tissues. Repositioning the client can help relieve this irritation by ensuring the tube is not kinked or pulling on the tissues. Increasing suction, stripping the tube, or clamping it are not appropriate actions and could potentially worsen the situation or cause harm.

Correct Answer: C

Rationale: When caring for a client who had an evacuation of a subdural hematoma, the nurse's priority is to check the oximeter. Monitoring oxygen saturation is crucial to ensure adequate tissue oxygenation, especially after such a procedure. This assessment helps in early detection of hypoxemia, which can be detrimental to the client's recovery. While observing for CSF leaks, assessing for temperature changes, and monitoring for signs of increased intracranial pressure are important, checking the oximeter takes precedence to address immediate oxygenation needs.

Correct Answer: A

Rationale: The client's shallow respirations at 9/min indicate hypoventilation, leading to an accumulation of carbon dioxide in the blood, causing respiratory acidosis. In this scenario, the client is at risk for developing respiratory acidosis due to inadequate ventilation and subsequent CO2 retention.