Assertion: cardiomyopathy's heart | /r/HasProperty | subjected to the stress of chf
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Source sentences:
text: After a thorough physical examination, the physician may perform the following diagnostic tests if cardiomyopathy is suspected: a chest x-ray to determine whether the heart is enlarged; an echocardiogram to view the size of the heart and the motion as it beats; an electrocardiogram to show disturbances in the heart’s electrical activity to detect abnormal rhythms and areas of injury; cardiac MRI; cardiac catheterization to measure pressure within the heart chambers; or blood tests such as B-type natriuretic peptide, a protein produced in the heart that rises when the heart is subjected to the stress of CHF.