Oxygenation improved which has a non-rebreather mask at 12 L/min oxygen. Preliminary ECG confirmed sinus rhythm. On emergency home arrival, he remained steady but still unresponsive. Arterial blood fuel uncovered respiratory acidosis (pH 7.21 and PCO276.5 mm Hg). Naloxone 2 mg intravenously was administered with no outcome. The client was sub