The blood sugars are probably a result of the “fight-or-flight” reaction. Explanation: During stressful situations, ACTH stimulates the release of cortisol from the adrenal gland, which creates protein catabolism releasing amino acids and stimulating the liver to convert amino acids to glucose, the result is elevated blood sugars. Option A is incorrect, antidiuretic hormone is released during stressful situations and stimulates reabsorption of water in the distal and collecting tubules of the kidney. Option B is incorrect; assuming the patient had diabetes prior to surgery demonstrates a lack of understanding of stress induced hyperglycemia. Option C is incorrect, there is no evidence presented in the question other than are elevated blood sugars that would support a diagnosis of diabetes. More test answers on https://studyhippo.com/stress-adaptation-nclex-questions/