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Spirometry (meaning the measuring of breath) ... The interpretation of the results can vary depending on the physician and the source of the predicted values ...
Pulmonary function testing (PFT) is a complete evaluation of the respiratory system including patient history, physical examinations, and tests of pulmonary function. The primary purpose of pulmonary function testing is to identify the severity of pulmonary impairment. [1]
His experiment produced results similar to those of Hutchinson's study. 1859 E. Smith developed a portable spirometer, which he used to measure gas metabolism. 1866 Henry Hyde Salter (1823-1871) added a kymograph to the spirometer in order to record time while obtaining air volumes.
Smoking notoriously lowers eNO values, and even former smoking status can influence results. The levels are higher in people with an atopic constitution (a tendency towards allergies ). [ 30 ] The fraction of eNO is also flow-dependent (higher at lower flow rates and vice versa), so measurements are normally measured at 50 ml/s.
This test involves measuring the partial pressure difference between inspired and expired carbon monoxide. It relies on the strong affinity and large absorption capacity of red blood cells for carbon monoxide and thus demonstrates gas uptake by the capillaries that are less dependent on cardiac output. [3]
The Solar Buddy has become a cult hit among parents who say it's easy to get their kiddos to wear sunscreen. "This has been a great add to our diaper bag," said one five-star reviewer. "We live in ...
There are a number of non-equivalent scales used in the interpretation of peak expiratory flow. [4] Some examples of Reference Values are given below. There is a wide natural variation in results from healthy test subjects. Wright scale [5] [6] EN 13826 or EU scale [7] NHANESIII [8] reference values provided by the US Centers for Disease ...
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