Collagen is a protein that is part of cartilage, bone, and other tissues in animals and humans. People use collagen from chickens for medicine. Chicken collagen is used to treat joint pain associated with many types of arthritis and surgery, as well as back pain, neck pain, and pain following injury.
Hemophilia is diagnosed with blood tests to determine if clotting factors are missing or at low levels, and which ones are causing the problem. If you have a family history of hemophilia, it is important that your doctors know the clotting factor your relatives are missing. You will probably be missing the same one.
The two most common pulmonary function tests for asthma are spirometry and methacholine challenge tests. 1  Spirometry: This pulmonary function test for asthma is a simple breathing test that measures how much air you can blow out of your lungs and how quickly. Methacholine challenge test: This lung function test for asthma is more commonly used in adults than in children. 2  It might be performed if your symptoms and screening spirometry do not clearly or convincingly establish a diagnosis of asthma.