A 36-year-old client reports heavy and prolonged menstrual bleeding that has worsened over the past year. The client denies a history of gynecologic conditions. Which assessment finding suggests the client is experiencing abnormal uterine bleeding?

Abnormal uterine bleeding (AUB) is defined as bleeding that deviates from the normal menstrual pattern in terms of frequency, duration, regularity, or volume. Soaking through a pad or tampon every hour for several consecutive hours is a classic hallmark of heavy menstrual bleeding, also known as menorrhagia, and is the defining clinical indicator of abnormal uterine bleeding. This level of bleeding significantly exceeds normal menstrual flow, which is typically defined as less than 80 mL per cycle, and can lead to iron-deficiency anemia and significant impairment of quality of life. Menstrual cycles occurring every 28 to 30 days with light bleeding represent a completely normal pattern and would not indicate AUB. Occasional spotting between periods without heavy bleeding is a finding that warrants investigation but does not meet the criteria for heavy AUB on its own; it may represent intermenstrual bleeding and requires further assessment but is not the most striking indicator of AUB described in this scenario. Mild cramping on the first day of menstruation is a normal finding, commonly referred to as primary dysmenorrhea, and does not indicate abnormal bleeding. The option describing soaking through a pad or tampon every hour for consecutive hours is the only finding that directly and unambiguously meets the clinical definition of abnormal uterine bleeding.