Assertion: friction | /r/CapableOf | rub cardiology a
Facets:
value: occasionally
type: DEGREE
Source sentences:
text: friction rub Cardiology A scratchy triphasic–occasionally, biphasic or monophasic sound extending over the entire precordium, best heard along the left midsternum with the Pt leaning forward, which changes in quality with inspiration and positional changes; FR is pathognomonic for pericarditis and must be differentiated from to-and-fro or machinery-like murmurs and 'crunching' sounds of emphysema; the 3 phases of the triphasic rub are due to pericardial-epicardial contact during ventricular systole, diastole, and atrial systole