Which of the following describes subjective data?

Subjective data refers to information that is based on personal opinions, interpretations, feelings, and experiences of individuals, particularly patients. This type of data is often gleaned from what the patient reports about their own health, such as feelings of pain, fatigue, or emotional distress. The key characteristic of subjective data is that it is not measurable or observable in a direct way—rather, it relies on the patient's own description of their internal experiences.

In contrast, other options describe objective data. Visible symptoms that a healthcare professional can observe, measurements taken during physical exams, and laboratory test results are all objective because they can be quantified or directly observed, independent of personal interpretation. Therefore, the reports of experiences such as pain from a patient accurately illustrate the essence of subjective data, making it the correct answer.