Ok, so you can reason this by drawing out REIT (sorry I can't draw it here). Anywho, you know its a restrictive disorder and will have a decreased RV, so automatically you know that RV is a component of FRC (FRC= RV+ERV). Thus, FRC should also be decreased. You also know that restrictive diseases are characterized by a steady decrease in FEV1/FVC since both components are decreasing. This leaves you with VC decreasing since FVC= forced vital capacity.
champagnesupernova3FEV1 and FVC both decrease but FEV1/FVC actually increases because FVC decreases more than FEV1 so the ratio increases +2019-10-03T21:15:37Z
fluentinwhaleExcuse my stupidity but what is REIT?+2019-10-08T07:29:13Z
to snoo-finity ... and beyond!
submitted by strugglebus(69), 2019-05-05T16:42:30Z
Ok, so you can reason this by drawing out REIT (sorry I can't draw it here). Anywho, you know its a restrictive disorder and will have a decreased RV, so automatically you know that RV is a component of FRC (FRC= RV+ERV). Thus, FRC should also be decreased. You also know that restrictive diseases are characterized by a steady decrease in FEV1/FVC since both components are decreasing. This leaves you with VC decreasing since FVC= forced vital capacity.