Computer simulation of mammalian gas-exchange

Area of Science:

• Physiology
• Computational Biology
• Respiratory Medicine

Background:

• Gas exchange efficiency depends on lung ventilation-perfusion (VA/Q) distribution.
• Oxygen and carbon dioxide dissociation curves and mixed venous blood composition are critical factors.
• Computer simulations offer a practical method to investigate these complex physiological relationships.

Purpose of the Study:

• To develop a computational tool for analyzing gas exchange.
• To calculate arterial blood gases and gas transport.
• To investigate the impact of varying VA/Q distributions and mixed venous blood composition.

Main Methods:

• Development of a BASIC program for microcomputers.
• Calculation of arterial blood gases and gas transport.
• Utilizing established physiological equations and theories.

Main Results:

• The program accurately calculates arterial blood gases and gas transport.
• It accommodates arbitrary VA/Q distributions and mixed venous blood compositions.
• Provides a practical simulation for physiological research.

Conclusions:

• The presented BASIC program is a valuable tool for studying gas exchange.
• It enables accessible simulation of lung physiology on microcomputers.
• Facilitates understanding of factors influencing gas exchange efficiency.