PAEA Surgery End Of Rotation (EOR) Practice Exam

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What is the healing time for subcutaneous and peritoneum tissues?

5-7 days
7-14 days
14-21 days
21-28 days

The correct answer is: 7-14 days

The healing time for subcutaneous and peritoneal tissues typically falls within the range of 7 to 14 days. This timeline is grounded in the understanding of the stages of wound healing, which encompass hemostasis, inflammation, proliferation, and remodeling. In the initial phase, hemostasis occurs rapidly, followed by an inflammatory response that usually peaks within a few days. During the proliferative phase, which often starts after approximately 3 days, fibroblasts synthesize collagen and extracellular matrix, leading to granulation tissue formation. For subcutaneous tissues, which are well vascularized, healing can proceed relatively swiftly. The peritoneum, being composed of a single layer of mesothelial cells, also exhibits a quick healing response, as these cells can regenerate effectively in response to injury. Both tissue types benefit from adequate blood supply and nutrition, which facilitate healing. Given these factors, the healing time of 7 to 14 days is realistic and clinically observed for uncomplicated cases.