A Study of Peri-Operative Changes in Serum Potassium Levels in Patients Undergoing Exploratory Laparotomy

Background: Electrolyte imbalance is a common physiological response following major abdominal surgery. Among electrolytes, potassium plays a pivotal role in neuromuscular, cardiac, and gastrointestinal function [1]. Aim: To analyse peri-operative trends in serum potassium levels among patients undergoing exploratory laparotomy. Materials and Methods: A prospective observational study was conducted on 57 patients undergoing exploratory laparotomy. Serum potassium levels were measured preoperatively and on postoperative days 1, 3, and 5 using an automated analyser. Results: Mean serum potassium levels showed a transient rise on postoperative day 1, followed by gradual normalisation by day 5. These changes were statistically significant (p < 0.05). Conclusion: Exploratory laparotomy results in a temporary but significant fluctuation in potassium, underscoring the importance of routine monitoring.