Unformatted text preview: 6. (12 points) A patient is allowed to breathe a mixture from a 2-L reservoir that contains 10% of an inert gas (i.e., one that will not cross from the lungs into the circulatory system). At the end of a period that is sufficient for the contents of the reservoir and the lungs to equilibrate, the concentration of the inert gas is measured and is found to be 2.7%. What is the patient's total lung capacity? (Question and answer taken from Introduction to biomedical engineering by John Denis Enderle, Joseph D. Bronzino and Susan M. Blanchard) a. Amount of inert gas stays constant though its concentration changes from 10% (C1) to 2.7% (C2). At the beginning the gas is in a 2-L reservoir (V1) and at the end it is in the reservoir and the patient's lungs (V2 = V1 + TLC). Using Boyles's law: C1V1 = C2V2 0.1*2 = 0.0...
View Full Document
This note was uploaded on 05/15/2012 for the course BME 365S taught by Professor Sokolov during the Spring '10 term at University of Texas.
- Spring '10