Basic Anesthesia Setting in ICU and Operation Theatres

Basic Anesthesia Settings in ICU and Operating Theatres

Basic anesthesia settings refer to the essential monitoring, equipment configuration, and safety parameters required to safely administer anesthesia and manage critically ill patients. Although the ICU (Intensive Care Unit) and the Operating Theatre (OT) have different purposes, both require standardized setups to ensure patient stability, safety, and effective response to emergencies.

1. Key Components of Anesthesia Settings
a. Airway & Ventilation Equipment

Ventilator or anesthesia machine capable of volume and pressure-controlled modes

Oxygen supply, air supply, and backup cylinders

Bag-valve mask (BVM) for manual ventilation

Suction machine for airway clearance

Airway tools: laryngoscopes, endotracheal tubes, supraglottic devices, stylets, bougies

2. Patient Monitoring (Minimum Required Standards)
In both ICU and OT, the essential monitors include:

ECG – continuous heart rhythm monitoring

Pulse oximetry (SpO₂) – oxygen saturation

Non-invasive blood pressure (NIBP) or invasive arterial BP

Capnography (ETCO₂) – mandatory in OT, commonly used in ICU for ventilated patients

Temperature monitoring

Airway pressure and tidal volume (for ventilated patients)

Additional OT Monitoring

Agent analyzer (measures concentration of anesthetic gases)

Neuromuscular monitoring (train-of-four)

Minimum alveolar concentration (MAC) display for inhalational agents

3. Medication & Infusion Setup

Induction agents: propofol, ketamine, etomidate

Analgesics: opioids (fentanyl, morphine), non-opioid adjuncts

Muscle relaxants: rocuronium, vecuronium, atracurium

Vasopressors: noradrenaline, phenylephrine, ephedrine

Emergency drugs: atropine, adrenaline, amiodarone

Continuous infusion pumps for sedation (ICU) or anesthesia maintenance (OT)

4. Safety & Preparation

Pre-oxygenation

Check of machine circuits, pipeline pressures, vaporizers

Availability of difficult airway cart

Defibrillator checked and ready

Sterile equipment layout in OT

ICU requires infection-control and monitoring alarms always active

5. Differences Between ICU and OT Anesthesia Settings
Operating Theatre (OT)

Designed for surgical anesthesia