bap65_copd: BAP-65 Score for Acute Exacerbation of COPD

In cliot: Clinical Indices and Outcomes Tools

BAP-65 Score for Acute Exacerbation of COPD

Description

Calculates the BAP-65 score to stratify risk in patients presenting with an acute exacerbation of Chronic Obstructive Pulmonary Disease (COPD). The score correlates with in-hospital mortality and need for mechanical ventilation.

Usage

bap65_copd(bun, altered_mental_status, pulse, age)

Arguments

bun	Numeric. Blood Urea Nitrogen in mg/dL. (>= 25 mg/dL adds +1 point).
altered_mental_status	Numeric (0 or 1). Presence of altered mental status (GCS <= 14 or disorientation). (1 = Yes, +1 point).
pulse	Numeric. Heart rate in bpm. (>= 109 bpm adds +1 point).
age	Numeric. Patient age in years. (> 65 years adds +1 point).

Value

A list containing:

BAP65_Score	The calculated score (Range 0-4).
Risk_Class	Classification (Class I to IV).
In_Hospital_Mortality	Estimated in-hospital mortality risk.
Recommendation	Clinical guidance regarding disposition (discharge, ward, or ICU).

References

Shorr AF, Sun X, Johannes RS, Yaitanes A, Tabak YP. Validation of a novel risk score for severity of illness in acute exacerbations of COPD. Chest. 2011;140(5):1177-1183. doi:10.1378/chest.10-2851

Examples

# Example 1: High Risk (Class IV)
# BUN 30 (+1), Alert (0), Pulse 115 (+1), Age 70 (+1)
# Score = 3
bap65_copd(30, 0, 115, 70)

# Example 2: Low Risk (Class I)
# BUN 15 (0), Alert (0), Pulse 80 (0), Age 60 (0)
# Score = 0
bap65_copd(15, 0, 80, 60)

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