Q: Which of the following electrolyte abnormality may increase the risk of post-operative ileus

A) Hypokalemia
B) Hyperkalemia


Answer: A

Post-operatively hypokalemia worsens ileus. 

Though newer evidences have questioned this conventional teaching, but so far it is important  to continue to consider hypokalemia as one of the causes of post-operative ileus. 


References:

1. . Lowman RM. The potassium depletion states and postoperative ileus. The role of the potassium ion. Radiology 1971;98:691-4.