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 28-year-old woman recently developed symptoms of chest pain that changed with positioning. It was worse when lying down and relieved when sitting up. The pain is better now but she notices increasing dyspnea and edema. On examination, the blood pressure is 85/60 mm Hg with a positive pulsus paradoxus, low volume pulse at 110/min, and the heart sounds are distant. The JVP is at 7 cm with a negative KussmauTs sign. There are low voltages on the ECG, and a large cardiac silhouette on the CXR.For the above patient with shortness of breath and peripheral edema, select the most likely diagnosis. and explain in detail?
Cardiac tamponade can occur with as little as 200 mL of fluid if the accumulation is rapid. Physical examination reveals a pulsus paradoxus (> 10 mm Hg inspiratory decline in systolic arterial pressure), a prominent x descent of the jugular veins, but no Kussmaul sign. The ECG may show low voltage.