Final answer:
The listed signs and symptoms are true indicators of a possible postpartum hemorrhage, a serious condition that can occur after childbirth and requires immediate medical attention to prevent shock and other complications.
Step-by-step explanation:
The signs and symptoms such as alterations in vitals, pallor, lightheadedness, restlessness, decreased urinary output, and changes in the level of consciousness (LOC) can indeed be indicative of a possible postpartum hemorrhage. This condition is characterized by significant blood loss after childbirth, which can lead to circulatory shock due to the major decrease in circulating blood volume. Rapid intervention is crucial to manage this life-threatening condition and may involve providing intravenous fluids and medications to maintain blood pressure, as well as procedures to control the bleeding.