A pulmonary function test (PFT) evaluates how well your lungs work. PFTs measure the amount of air in your lungs, how well the lungs move air in and out, and possibly how medications affect the lungs. Your doctor may send you for PFTs to diagnose a lung disease, measure the severity of lung problems, as a pre-operative work-up or to see if a treatment is working for your lung disease. A respiratory therapist will guide you through each test in a special exam room that has all the lung function measuring devices.
Dow Jones Industrial Average index has 30 companies. What are the requirements or criteria for a company to be one of the 30 companies in Dow Jones Industrial Average index- DJIA component. 1 following.
Quality Criteria for Instruments. The quality criteria for sound project evaluation instruments are organized into three sections corresponding to the three principal characteristics of instruments: (1) Design, (2) Technical Quality, and (3) Utility.See the criteria overview for a general introduction to the quality criteria.roject participants, members of the evaluation team, or other stakeholders may be the appropriate respondents for a specific data-gathering approach. In cases where it is not possible to involve all participants or stakeholders, random or purposeful sampling is called for.