Pulmonary function testing has come into widespread use since the 1970s. This has been facilitated by several developments. Because of miniaturization and advances in computer technology, microprocessor devices have become portable and automated with fewer moving parts.
You will pay Part B premiums as long as you keep the card. Those who are not automatically enrolled in Part B can sign up during their initial Medicare enrollment period which begins three months before their 65th birthday and ends three months after the 65th birthday.
Part B is a voluntary medical insurance program financed in part from federal funds and in part from premiums contributed by enrollees. Medicare enrollment is generally offered to people 65 years of age or older who are entitled to receive Social Security or railroad retirement benefits. Individuals under age 65 can be eligible if they are disabled or have end-stage renal disease. 2 (in Canada) the name of the national health insurance program.