Can't you drink even a drop of water before general anesthesia surgery?

Feb 09, 2023 Source: Cainiu Health

Dr. Li Feng

Introduction

Not even a single drop of water should be consumed before general anesthesia surgery. General anesthesia refers to the administration of anesthetic agents through the respiratory tract or intravenous route to induce temporary suppression of the central nervous system. During the procedure, patients lose consciousness, experience complete loss of pain sensation, suppressed reflexes, and skeletal muscle relaxation, which facilitates surgical operations. Strict restrictions are imposed on eating and drinking, including water intake, prior to general anesthesia.

Patients must not drink even a single drop of water before general anesthesia.

General anesthesia refers to the administration of anesthetic agents via the respiratory tract or intravenous route to temporarily suppress the central nervous system. During surgery, this results in loss of consciousness, absence of pain sensation throughout the body, suppressed reflexes, and skeletal muscle relaxation, facilitating surgical procedures.

There are strict restrictions on eating and drinking before general anesthesia, including all forms of fluid intake such as water, fruit juice, and milk. Clear fluids are typically prohibited two hours before surgery, fruit juice four hours before, and milk six to eight hours before, depending on individual circumstances. Patients must remain fasting prior to surgery because both surgery and anesthesia can impair normal gastrointestinal function. Consuming food or large amounts of liquid may lead to severe nausea and vomiting, and could cause stomach contents to enter the airway, potentially resulting in aspiration pneumonia or even suffocation.

Therefore, doctors always instruct patients to abstain from food and drink before surgery to ensure safety and smooth operation.

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