Cardiac Assessment and Monitoring Practice Test

A 69-year-old female with CHF reports worsening dyspnea and cannot lie flat. She has pitting edema and a productive cough with pink frothy sputum. She is anxious and tachypneic. Lung sounds reveal diffuse crackles. Initial vitals: HR 116, BP 172/104, RR 36, SpO₂ 80% on room air. ECG shows sinus tachycardia. You apply ECG monitoring and sit her upright. What is the next step in managing this patient's care?​

A 72-year-old male with CHF presents with worsening dyspnea and orthopnea over two days. He reports needing three pillows to sleep and notes increased leg swelling. On exam he is tachypneic with accessory muscle use and can only speak 2–3 words at a time. Lung sounds reveal diffuse crackles; mild cyanosis is present around the lips. JVD is visible; pitting edema 3+ at ankles. Initial vitals: HR 104, BP 188/110, RR 32, SpO₂ 84% on room air. ECG shows sinus tachycardia. You apply ECG monitoring and prepare airway equipment. Which intervention is most appropriate for the patient's condition?​