The correct answer is choice A, C, and D. Choice A rationale: The patient’s oxygen saturation is at 94%, which is just below the normal range of 95-100% for healthy adults breathing room air. Administering oxygen 2 to 4 liters to maintain oxygen saturation at or above 95% is a standard intervention to ensure adequate oxygenation. Choice B rationale: A stat ventilation/perfusion (V/Q) scan is typically ordered for suspected pulmonary embolism, which is not indicated by the patient’s current data. The patient’s symptoms do not specifically suggest a V/Q mismatch that would necessitate this diagnostic test. Choice C rationale: A chest x-ray is a common diagnostic tool for evaluating the lungs and heart, especially when a patient presents with symptoms that may indicate respiratory or cardiac issues. Given the patient’s temperature and heart rate, which are slightly elevated, a chest x-ray can help identify any potential underlying conditions. Choice D rationale: Ordering a CBC, BMP, and blood cultures can help identify the cause of the patient’s fever and tachycardia. These tests provide valuable information about the patient’s immune response, electrolyte balance, kidney function, and whether there is a bacterial infection. Choice E rationale: While sending sputum for culture and sensitivity could be helpful if a respiratory infection is suspected, the patient’s data does not strongly indicate a respiratory infection as the primary issue. Therefore, this test may not be the most immediate need.