AX, or the area of reactance, is the area from X5 to Fres to 0.0
Fres, or resonant frequency
In many disease states that affect lung “stiffness” or resistance, the reactance worsens. Graphically you will see the X5 become more negative.
Both AX and Fres tend to increase in disease and decrease with bronchodilator response
No comments:
Post a Comment