Every single nursing diagnosis has its own set of symptoms, or defining characteristics. They are listed in the NANDA taxonomy and in many of the current nursing care plan books that are currently on the market that include nursing diagnosis information. You need to have access to these books when you are working on care plans. There are currently 188 nursing diagnoses that NANDA has defined and given related factors and defining characteristics for. What you need to do is get this information to help you in writing care plans so you diagnose your patients correctly.