Answer :
Final answer:
Objective data refers to observable and measurable information. In the context of the question, the example of objective data would be 'crepitation in the left knee joint' as it can be independently verified by a healthcare professional. Other options like complaints of knee pain, swelling or impaired mobility are subjective since they're based on personal experiences.
Explanation:
An example of objective data refers to information that is measurable, observable, and can be independently verified by a healthcare professional. According to the provided question, the appropriate answer would be option B) crepitation in the left knee joint. This is because crepitation, which refers to a crackling sound or grating feeling, can be observed and confirmed by a medical professional during a physical examination, making it an example of objective data. For example, a doctor may listen for crepitation in a patient's lungs, much like the physician who heard it in Marsha's case as mentioned in the reference information. The other options, like complaints of pain, swelling and impaired mobility are all examples of subjective data as they are based on patients' personal experiences and cannot be independently confirmed or measured.
Learn more about Objective Data here:
https://brainly.com/question/36758230
#SPJ11
