____ occurs when the amount of pericardial fluid in the pericardial sac becomes large enough to interfere with ventricular filling.

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Pericardial tamponade occurs when there is a significant accumulation of fluid in the pericardial sac, which puts pressure on the heart and makes it difficult for the ventricles to fill properly. This can lead to a decrease in cardiac output and potentially life-threatening complications. Cardiac thrombosis is the formation of a blood clot in the heart, which can obstruct blood flow and cause a heart attack or stroke. Pericardial effusion is the presence of excess fluid in the pericardial sac, but it does not necessarily cause tamponade. Hemoptysis refers to coughing up blood from the respiratory tract, which is not related to pericardial tamponade.

____ Occurs When the Amount of Pericardial Fluid in the Pericardial