A postoperative client develops sudden shortness of breath, chest pain, and anxiety. Oxygen saturation drops to 86%. Which condition should the nurse suspect first?

A postoperative client develops sudden shortness of breath, chest pain, and anxiety. Oxygen saturation drops to 86%. Which condition should the nurse suspect first?

• A. Pulmonary Embolism
• B. Myocardial Infarction
• C. Pneumothorax
• D. Atelectasis

Answer: (A)

Sudden shortness of breath with chest pain and anxiety after surgery, along with a rapid drop in oxygen saturation, points to a pulmonary embolism. After surgery, immobility and a hypercoagulable state increase the chance of a deep vein thrombosis that can travel to the lungs and abruptly obstruct blood flow. This blockage disrupts gas exchange, causing acute dyspnea, chest pain (often pleuritic), and hypoxemia, which fits the clinical picture described. While myocardial infarction can cause chest pain, the hallmark acute hypoxemia is less typical as the initial primary sign in this postoperative scenario, and pneumothorax would usually show unilateral signs such as reduced breath sounds and unequal chest expansion. Atelectasis tends to produce a slower, milder decline in oxygenation and more subtle symptoms, rather than a sudden, dramatic drop. In this situation, prioritize oxygen, continuous monitoring, and rapid evaluation for pulmonary embolism with imaging and treatment per protocol.

Sudden shortness of breath with chest pain and anxiety after surgery, along with a rapid drop in oxygen saturation, points to a pulmonary embolism. After surgery, immobility and a hypercoagulable state increase the chance of a deep vein thrombosis that can travel to the lungs and abruptly obstruct blood flow. This blockage disrupts gas exchange, causing acute dyspnea, chest pain (often pleuritic), and hypoxemia, which fits the clinical picture described.

While myocardial infarction can cause chest pain, the hallmark acute hypoxemia is less typical as the initial primary sign in this postoperative scenario, and pneumothorax would usually show unilateral signs such as reduced breath sounds and unequal chest expansion. Atelectasis tends to produce a slower, milder decline in oxygenation and more subtle symptoms, rather than a sudden, dramatic drop.

In this situation, prioritize oxygen, continuous monitoring, and rapid evaluation for pulmonary embolism with imaging and treatment per protocol.