asa_physical_status: ASA Physical Status Classification System

In cliot: Clinical Indices and Outcomes Tools

ASA Physical Status Classification System

Description

Retrieves the definition and examples for the American Society of Anesthesiologists (ASA) Physical Status Classification System. This system is used to assess the fitness of patients before surgery.

Usage

asa_physical_status(asa_class, emergency = 0)

Arguments

asa_class	Numeric (1-6). The ASA Physical Status Class. 1: Normal healthy patient. 2: Mild systemic disease. 3: Severe systemic disease. 4: Severe systemic disease that is a constant threat to life. 5: Moribund patient not expected to survive without operation. 6: Declared brain-dead patient for organ donation.
emergency	Numeric (0 or 1). Is the procedure an emergency? (1 = Yes). Adds the "E" suffix to the classification.

Value

A list containing:

Classification	The formatted classification string (e.g., "ASA III-E").
Definition	The official definition of the class.
Examples	Common adult clinical examples corresponding to the class.
Emergency_Status	Boolean indicating if the procedure is emergent.

References

ASA House of Delegates/Executive Committee. ASA Physical Status Classification System. American Society of Anesthesiologists. Last amended 2020.

Examples

# Example 1: Healthy Patient
asa_physical_status(1, 0)

# Example 2: Emergency Surgery for High Risk Patient
# ASA IV (Severe systemic disease, threat to life)
asa_physical_status(4, 1)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.