Final answer:
Preoperative management for a 77-year-old female with recurrent diverticulitis undergoing sigmoid colon resection should include a comprehensive medical evaluation, the use of antibiotics if necessary, possible hospitalization and bowel rest for severe symptoms, and preoperative fasting as per anesthesia guidelines.
Step-by-step explanation:
The most appropriate management for a 77-year-old female scheduled for a resection of the sigmoid colon for recurrent diverticulitis would involve a thorough preoperative medical evaluation to determine her fitness for surgery and to optimize her condition to reduce the risk of perioperative complications. This evaluation might include blood work, cardiac assessment, and potentially a CT scan to assess the extent of the diverticulitis and to rule out abscess or other complications that might require immediate intervention. Additionally, depending on the severity of her condition, she may need to be on antibiotics, and if she is experiencing severe symptoms, she might require hospitalization and complete bowel rest in advance of surgery. It's also crucial that the patient adheres to a preoperative fasting period as advised by the anesthesiologist.