A nurse assesses the following patients for potential endocrine dysfunction. Which patient is at greatest risk for a deficiency of gonadotropin-releasing hormone?

A 55-year-old female with a severe allergy to shellfish and iodine.

A 36-year-old female who has used oral contraceptives for 5 years.

A 42-year-old male who experienced head trauma 3 years ago.

A 64-year-old male with adult-onset diabetes mellitus.