PIDs as a Powerful Tool! Now PIDs measure 0-10,000 ppm (parts per million)with resolution as low as 1 ppb and therefore are a veryappropriate means of measuring VOCs (and other toxicgases and vapors) at the low levels leading to chronictoxicity. PIDs provide excellent protection againstchronic toxicity.
People with rheumatoid arthritis are at increased risk for osteoporosis for many reasons: 1  Glucocorticoid (corticosteroid) medications such as prednisone often prescribed for the treatment of rheumatoid arthritis can trigger significant bone loss. Pain and loss of joint function caused by the disease can result in inactivity, further increasing osteoporosis risk. Studies also show that bone loss in rheumatoid arthritis may occur as a direct result of the disease. The bone loss is most pronounced in areas immediately surrounding the affected joints.
Successful treatment is best determined by lack of fracture, but the surrogate outcome of stability or increase in BMD suggests treatment effectiveness. A decrease in BMD suggests noncompliance, inadequate calcium and vitamin D supplementation, an unidentified secondary cause of osteoporosis, or treatment failure.