| 1. | Various abnormalities can be found on auscultation, such as a third and fourth pericardial friction rub and rales over the lung.
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| 2. | A different type of sound, a pericardial friction rub can be heard in cases of pericarditis where the inflamed membranes can rub together.
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| 3. | A pericardial friction rub is a very specific sign of acute pericarditis, meaning the presence of this sign invariably indicates presence of disease.
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| 4. | Rubs & ndash; The pericardial friction rub can be heard in pericarditis, an inflammation of the pericardium, the sac surrounding the heart.
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