Final answer:
Abnormal findings during PVS auscultation include bruits indicating turbulent blood flow and gallop rhythms suggesting heart complications like hypertrophic cardiomyopathy.
Step-by-step explanation:
Two abnormal findings during auscultation of PVS (peripheral vascular system) include the presence of bruits and gallop rhythms such as the third and fourth heart sounds. Bruits are unusual swooshing sounds indicating turbulent blood flow, often a result of arterial narrowing or blockage. A gallop rhythm, on the other hand, is characterized by additional heart sounds ('lub-dub-da' for S3 and 'da-lub-dub' for S4) that may suggest heart failure or hypertrophic cardiomyopathy, a pathological enlargement of the heart.
These findings differ from the normal 'lub-dub' sounds produced by the closure of atrioventricular and semilunar valves respectively and warrant further medical investigation. Dull or absent heart sounds may indicate a problem with the conduction system or a presence of fluid or inflammation around the heart. It is important to note that further evaluation and diagnostic tests are usually needed to determine the underlying cause of these abnormal findings.