Assertion: heart failure's heart | /r/CapableOf | become overfilled
Facets:
Source sentences:
text: A B-type natriuretic peptide (BNP) blood test — the release of BNP into the blood occurs if the heart becomes overfilled and is struggling to function properly.
text: — the release of BNP into the blood occurs if the heart becomes overfilled and is struggling to function properly.