cliot (version 1.0.0)

abg_analyzer: Arterial Blood Gas (ABG) Analyzer

Description

Interprets arterial blood gas values to identify acid-base disturbances. It determines the primary disorder (Respiratory vs. Metabolic, Acidosis vs. Alkalosis), assesses the degree of compensation (Acute vs. Chronic, or appropriate secondary response), and calculates the Anion Gap and Delta Ratio if electrolytes are provided.

Usage

abg_analyzer(ph, paco2, hco3, na = NULL, cl = NULL, albumin = 4.0)

Value

A list containing:

Diagnosis

The primary acid-base disorder identified.

Compensation

Analysis of the compensatory response (e.g., Uncompensated, Compensated, or Mixed).

Anion_Gap_Analysis

If electrolytes are provided, reports the Anion Gap (corrected for albumin) and the Delta Ratio interpretation for high gap acidosis.

Arguments

ph

Numeric. Arterial pH.

paco2

Numeric. Partial pressure of carbon dioxide (mmHg).

hco3

Numeric. Bicarbonate concentration (mEq/L).

na

Numeric (Optional). Serum sodium (mEq/L). Required for Anion Gap calculation.

cl

Numeric (Optional). Serum chloride (mEq/L). Required for Anion Gap calculation.

albumin

Numeric (Optional). Serum albumin (g/dL). Used to correct the Anion Gap. Defaults to 4.0 if not provided.

References

Adrogué HJ, Madias NE. Management of life-threatening acid-base disorders. N Engl J Med. 1998;338(1):26-34.

Examples

# Example 1: Diabetic Ketoacidosis (High AG Met Acidosis)
# pH 7.2, pCO2 25 (Compensated), HCO3 10, Na 140, Cl 100
abg_analyzer(7.2, 25, 10, 140, 100)

# Example 2: Acute Respiratory Acidosis (Opioid Overdose)
# pH 7.25, pCO2 60, HCO3 26 (Acute/Uncompensated)
abg_analyzer(7.25, 60, 26)

# Example 3: Mixed Disorder (Septic Shock + Vomiting)
# High AG Acidosis + Met Alkalosis
# pH 7.4, pCO2 40, HCO3 24 (Normal pH/Nos), but High Gap
# Na 140, Cl 90, Alb 4.0
# AG = 140 - (90 + 24) = 26. Delta Gap = 14. Delta HCO3 = 0. Ratio > 2.0
abg_analyzer(7.4, 40, 24, 140, 90)