Practice Guidelines for Preoperative Fasting

Infographic by Dr. Jesse Burk-Rafel

> 8 hours - Heavy foods (fried/fatty) and meats 

> 6 hours - Light meal (e.g., toast + clear liquid), Cow's milk (in moderation), Infant formula 

> 4 hours - Breast milk 

> 2 hours - Non-alcoholic clear liquids 
(e.g., water, fruit juice without 
pulp, nutritional drinks, clear 
tea, black coffee) 

0-2 hours - NPO 

Benefits of Clear Liquids up to 2 hours Pre-Op 
 - LESS patient thirst and hunger 
 - LOWER risk of aspiration 

Source: American Society of Anesthesiologists. practice Guidelines for Preoperative Fasting and 
the Use Of pharmacologic Agents to Reduce the Risk Of pulmonary Aspiration: Application to 
Healthy Patients undergoing Elective Procedures. Anesthesiology. 2017: 126376-393. 

#NPO #Preoperative #Fasting #Guidelines #Anesthesia #Hours #Timeline #EBM #VisualAbstract #Times #Preprocedural
Dr. Aaron Brown @aaronbrown · 11 months ago
GrepMed Anesthesia Editor, UC Davis School of Medicine 2019