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A microcomputer program of pulmonary and tissue gas exchange.

Annals of Biomedical Engineering

|January 1, 1986

Summary

This program models lung and tissue gas exchange, analyzing how various factors affect oxygen and carbon dioxide levels. It aids medical professionals in understanding complex physiological processes.

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Area of Science:

Physiology
Medical Informatics

Background:

Gas exchange and transport are critical physiological processes.
Understanding these phenomena is essential for medical professionals in various specialties.

Purpose of the Study:

To develop a user-friendly microcomputer program for analyzing pulmonary and tissue gas exchange.
To provide a tool for medical students and residents to study steady-state oxygen and carbon dioxide dynamics.

Main Methods:

Developed a BASIC program for IBM-PC compatible systems.
Implemented two main subroutines: Pulmonary Gas Exchange and Tissue Gas Exchange.
Utilized three-compartment and V/Q distribution models for lung gas exchange, and modified Krogh-Erlang and Piiper models for tissue gas exchange.

Main Results:

The program allows analysis of steady-state blood and tissue oxygen and carbon dioxide levels.
It can simulate gas exchange using various models, including V/Q distributions and modified Krogh-Erlang/Piiper models.
Calculates minimal and maximal tissue oxygen tensions based on variable intercapillary distances.

Conclusions:

The developed software provides a valuable educational tool for studying gas exchange and transport.
It enables comprehensive analysis of factors influencing oxygen and carbon dioxide tensions in lungs and tissues.
Offers quantitative estimates of key physiological parameters related to oxygen transport.

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