A prescribed period of time before a procedure when clients are not allowed the oral intake of liquids or solids
Aim is to prevent pulmonary aspiration during anesthesia and prevent post operative pulmonary complications.
| Fasting Guideline | Time /hrs |
| Clear Liquids | 2 |
| Breast Milk | 4 |
| Infant Formula Milk | 4-6 |
| Liquids Containing pulps and particles | 4-6 |
| Non Human Milk | 6 |
| Light Meal | 6 |
| Heavy Meal (Contain fat and meat) | 8 |
Note:
Liquids Containing pulp – Fruit juices
Liquids Containing particles – Coffee
Light meal is usually a meal containing carbohydrates (could contain certain amount of fat and/or protein.
Heavy Meal is usually heavy fat and protein containing meals.
You should avoid of above foods and fast minimum of hours as above before the surgery.
All the above values are for healthy individuals. If you have any medical condition these values might be not valid for you. In such conditions always follow the instruction of your anesthetist.
In Sri Lanka mostly we restrict all the type of oral intakes nearly for 10 hours before the surgery for their own well being.
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