You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A 52-year-old businessman with nephrotic syndrome after a non-stop flight from New York to New Delhi presents with sudden onset of breathlessness, haemoptysis, and chest pain. He is brought into Casualty in shock. His chest X-ray is normal. The ECG shows sinus tachycardia. and explain in detail?
1. In this patient no pulmonary edema, MI absent and aoic dissection also absent. 2. Nephrotic syndrome patient will be in hypercoagulable state, long flight- DVT- pulmonary embolism- acute Cor pulmonale 3. Most common causes of Cor pulmonale- pulmonary embolism 4. CXR is normal because it is only a small clot and clot usually not visible on X-ray