Which complaint from a postmenopausal client should the nurse refer to the healthcare provider?

The complaint of episodes of vaginal bleeding in a postmenopausal client is particularly significant and warrants referral to a healthcare provider. In a postmenopausal woman, the cessation of menstrual periods for 12 consecutive months suggests that the uterus has stopped shedding its lining. Any vaginal bleeding that occurs after this point is considered abnormal and could indicate a potential underlying issue such as endometrial hyperplasia or malignancy. Therefore, it's critical to investigate this symptom further through a healthcare provider for appropriate evaluation and management.

Other symptoms listed, such as lumpy breasts, white nipple discharge, or excessive night sweats, may also raise concerns; however, they do not carry the same level of urgency as postmenopausal vaginal bleeding. While these complaints should not be ignored and may require further assessment, they are not as immediately concerning in terms of potential malignancy or serious health implications as vaginal bleeding following menopause.