Laboratory examinations along with the tests observing the work of lungs are two more methods of detecting Emphysema. The patient has to submit the blood from the wrist artery to find out whether the lungs deliver oxygen to all strategic parts of the body. The lungs should also be able to replace carbon dioxide from the general bloodstream. As for the tests, they evaluate the ability of the lungs to absorb the air and keep it inside. Sometimes, it’s just enough to blow into the spirometer to be examined.