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FEV1 is the volume of air that can forcibly be blown out in first 1-second, after full inspiration. [13] Average values for FEV1 in healthy people depend mainly on sex and age, according to the diagram. Values of between 80% and 120% of the average value are considered normal. [14]
In obstructive lung disease, the FEV1 is reduced due to an obstruction of air escaping from the lungs. Thus, the FEV1/FVC ratio will be reduced. [4] More specifically, according to the National Institute for Clinical Excellence, the diagnosis of COPD is made when the FEV 1 /FVC ratio is less than 0.7 or [8] the FEV 1 is less than 75% of predicted; [9] however, other authoritative bodies have ...
In absence of such, estimates of residual volume have been prepared as a proportion of body mass for infants (18.1 ml/kg), [12] or as a proportion of vital capacity (0.24 for men and 0.28 for women) [13] or in relation to height and age ((0.0275* Age [Years]+0.0189*Height [cm]−2.6139) litres for normal-mass individuals and (0.0277*Age [Years ...
PSA levels between 4 and 10 suggest you could have about a 25 percent chance of prostate cancer, and levels over 10 signal that your chance of having the cancer is more than 50 percent.
pre-denotes something as 'before' another (in [physical] position or time) Middle English pre-, from Medieval Latin pre-< (Classical) Latin prae-, before, in front of premature birth: presby-old age Greek πρέσβυς (présbus), old man, elder presbyopia, presbycusis [10] prim-denotes something as 'first' or 'most-important'
For men over 64 with prostate cancer limited to the pelvis, using fewer, larger doses of radiation (hypofractionation) results in similar overall survival rates. [28] The risk of dying from prostate cancer or having acute bladder side effects may be similar to that of longer radiation treatment. [ 28 ]
Here’s what you need to know about severe bird flu, including its symptoms and treatment, after the U.S. sees its first severe case of H5N1.
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