Flow Volume Loops. 1  Peak Expiratory Flow Rate (PEFR) 2  Forced Expiratory Volume after 0.5 seconds (FEV0.5) 3  Forced Expiratory Volume after 1 second (FEV1) 4  Forced Expiratory Volume after 3 seconds (FEV3) 5  Forced Expiratory Volume after 6 seconds (FEV6) 6  Forced Vital Capacity (FVC) 7  Forced Expiratory Flow at 25% of FVC (FEF25)
Phantom limb pain (PLP) refers to ongoing painful sensations that seem to be coming from the part of the limb that is no longer there. The limb is gone, but the pain is real. The onset of this pain most often occurs soon after surgery. It can feel like a variety of things, such as burning, twisting, itching or pressure.
CRPS can sometimes cause severe problems and be difficult to treat. Complex regional pain syndrome (CRPS) is a greater than normal reaction of the body to an injury. The cause of CRPS is not known. The nerves in the affected limb are much more sensitive than other nerves and this causes pain and tenderness in the affected area. The pain usually starts after an injury but may occur without an injury. It usually affects an arm or a leg but can affect another part of the body.