a 34-year-old client pregnant with her first child
an obese client with a body mass index of 30
a client with two first-degree relatives with breast cancer
Number 1 is correct.
Rationale: Clients older than 65 years and those with dense breasts are at the highest increased risk of developing breast cancer. Women who have their first child after age 30 or who are obese are at a low increased risk. A family history of two first-degree relatives with breast cancer is a moderate increase in risk.
