Final answer:
Persistent elevation of blood pressure is usually the only abnormal PE finding.
Step-by-step explanation:
In medicine, a persistent elevation of blood pressure is usually the only abnormal physical examination (PE) finding.
For example, in the case of hypertension, high blood pressure is often the primary abnormality observed during a physical examination.
The significance of this finding depends on the severity of the elevation and whether it is accompanied by other symptoms or signs of organ damage.