Final answer:
The fundus of the uterus is typically no longer palpable around two weeks postpartum, marking the end of the uterine involution process.
Step-by-step explanation:
The question pertains to the postpartum process and the uterus returning to its normal size after childbirth, a process known as involution. After giving birth, the uterus begins to decrease in size and the fundus (the upper portion of the uterus) should typically no longer be palpable after about two weeks. However, this can vary depending on individual circumstances. The lochia stages — lochia rubra, lochia serosa, and lochia alba — indicate the progression of healing and discharge following delivery. Adequate examination of the expelled placenta and fetal membranes by the obstetrician is crucial to prevent complications such as postpartum hemorrhage. Furthermore, contractions help reduce blood loss and return the uterus to its pre-pregnancy size, encouraged by actions like breastfeeding.