Final answer:
Nurses should assess clients for violence daily as stress levels and the risk for violence can fluctuate, with some programs seeing increased stress between months three and six.
Step-by-step explanation:
The nurse should assess clients for violence at least once a day because the risk for violence can change. Given the information that stress increased for clients between months three and six in the program, it is vital for healthcare providers to closely monitor clients for any signs of violence. Frequent assessments allow for timely identification of increased risk and the ability to provide appropriate interventions.