MRCP2-1369

A 75-year-old man is brought to the hospital by his family after being found unresponsive. Upon examination, the patient has a GCS of 8 and is overweight with a yellowish tint to his skin. His pulse is 50 beats per minute and his temperature is 35°C. The patient’s heart sounds are normal, but the ECG shows a rate of 49 bpm. Coarse crepitations are heard upon auscultation of the chest, and there is generally decreased air entry bilaterally. What is the most likely diagnosis?