NCLEX High Yield | NHY Nursing™️ on Instagram: "🚨 Priority Question Alert 🚨 A client with chronic heart failure is being treated with furosemide and digoxin. The nurse notes the client is newly confused, reluctant to eat, and reports that “the lights in the room look blurry with a yellow glow.” Telemetry shows occasional PVCs. Today’s labs: K⁺ 3.0 mEq/L BNP 785 pg/mL Digoxin level pending Which action is the priority? A. Request a stat digoxin level B. Apply O₂ at 2 L/min via nasal cannula C.