<prompt> Menorrhagia heavy periods is defined as a blood loss of greater than:35 mL per period55 mL per period80 mL per period120 mL per period  <response>: Ans. C. 80mL per period Menorrhagia heavy periods is defined as a blood loss of greater than 80 mL per period. This definition is rather arbitrary but represents the level of blood loss at which a fall in hemoglobins and hematocrit concentration commonly occurs. 