Pre-operative fasting is not indicated in most cases and can lead to:
1. Increased fatigue.
2. Daily headaches.
3. Depletion of glucose stores.
4. Insulin resistance.
3
Rationale: Pre-operative fasting is not recommended in most cases and can result in diminished glucose stores post-operatively. Carbohydrate loading using orals liquids are being used to preserve glucose stores and reduce post-operative metabolic stress and insulin resistance. Fatigue and daily headaches are not common side effects of preoperative fasting.
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