The Wet Spirometer
Purpose: The purpose of this lab is to introduce the student to the wet spirometer and the various lung volumes that may be determined using this instrument.
Materials and Methods: This lab requires an Intelitool Wet Spirometer, appropriate software, computer, and an LCD projector.
Experiment: This experiment will be conducted as a demonstration. The instructor will call for volunteers to determine the following lung volumes of each participant:
tidal volume
expiratory reserve volume
inspiratory reserve volume
vital capacity
Conclusion: (Please use your text or the internet as a resource for the questions below.)
The chart below demonstrates lung volumes as measured by a spiromenter. What is meant by residual volume?
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What is vital capacity?
What is tidal volume? How was tidal volume determined in this experiment?
In the demonstration experiment, what is the difference between the measured vital capacity and the predicted vital capacity?