Asking meaningful questions pertaining to a particular patient is necessary to identify differential diagnoses. It is critical to identify the differential diagnoses that are best for each patient. Subjective data helps the FNP to select differential diagnosis as it provides information on the probability of having a particular diagnosis. Since this all starts with the subjective data, FNP must be skilled at developing a process for the task. In terms of differential diagnosis for a sore throat, the task is to identify the ones with the highest possibility of being accurate. The objective data serves to further narrow down the possibility. When the subjective and objective data is not enough to identify the most accurate differential diagnosis.
