Which of the Following Combinations are Characteristic of a Restrictive

Question

Which of the following combinations are characteristic of a restrictive pattern?
A) Reduced VC,reduced TLC,normal RV/TLC
B) Reduced FRC,elevated TLC,normal RV/TLC
C) Elevated RV,elevated TLC,elevated RV/TLC
D) Reduced FRC,elevated VTG

Accepted Answer

A restrictive pattern is characterized by a reduction in lung volumes, including total lung capacity (TLC) and vital capacity (VC), with a normal residual volume to total lung capacity ratio (RV/TLC). This indicates that while the lung's overall size is reduced, the proportion of air remaining in the lungs after a full exhalation compared to the total lung capacity remains within normal limits.