Which of the following demonstrates a subjective finding?

A subjective finding is one that is based on a patient's personal experience and reporting rather than an observable measurement. The pain level represents an individual's personal sensation or experience, which can only be described by the patient themselves. It is inherently qualitative and varies widely from person to person, making it a prime example of a subjective finding.

In contrast, pulse rate, eye color, and extremity edema are objective measurements that can be quantified and assessed by a healthcare provider. The pulse rate is a vital sign indicating the heart's beats per minute, eye color is an observable characteristic that does not change based on a patient's feelings, and extremity edema is a physical condition that can be seen and measured. These factors rely on physical examination or technological tools rather than personal patient reports, which categorizes them as objective findings rather than subjective ones.