Final answer:
Prolonged poverty is a sociocultural finding that can alert a nurse to a possible developmental problem in a patient.
Step-by-step explanation:
The sociocultural finding in the history of a patient that will alert the nurse to a possible developmental problem is prolonged poverty. Prolonged poverty can have a significant impact on a person's development, including physical, cognitive, and psychosocial aspects. It can lead to inadequate nutrition, limited access to healthcare, and lack of educational opportunities, which can all contribute to developmental problems.