Pulmonary Function Testing (PFT) is a standard test that can help diagnose chronic obstructive pulmonary disease (COPD). The results may also determine how severe your disease is, and how well treatment is working.
A main part of the testing involves placing your mouth over a mouthpiece, blocking your nose with clamps, inhaling as deeply as you can, and forcibly exhaling as long and hard as you can until no more breath comes out. These results are recorded.
FVC . Forced Vital Capacity. Total amount of air you can exhale after deep inhalation.
TLC . Total Lung Capacity. How much air remains in your lungs after you completely exhale.
RV . Residual Volume. Air that remains inside your lungs even after the most forcible exhalation. Some air stays inside to keep your lungs open.
FEV1 . Forced Expiratory Volume at the one second mark of FVC.
FEV1/ FVC . Expresses FEV1 as a percentage of the predicted value. This test is very sensitive, and a good m...
Did you know that Linda Ronstadt, Mary-Louise Parker, Oprah, Kim Cattrall and George and Barbara Bush have thyroid disease? Probably not. Thyroid problems don't make the news, at least not as often as mental health issues do. But if you believe that you have clinical depression, or have been diagnosed with clinical depression, you should make sure that your doctor rules out thyroid disease as a cause or contributing factor.
We are all taught how our brain and the nerves in our body act as an electrical control system for everything we do, but we rarely learn about how our endocrine system controls all of the biological processes in our bodies. The endocrine system consists of a series of glands scattered throughout the body. These glands include the pituitary, the pineal, the hypothalamus, the thyroid, the parathyroid, the pancreas, the testes and ovaries, the liver, the adrenal glands and a host of lesser known glands. Each of these glands release hormones into our blood that ...
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