Lung function tests are a way to check how well your lungs are working. Doctors use lung function tests to diagnose asthma and to monitor its progression. Monitoring asthma with lung function tests is helpful, because you may not always be able to tell -- just from your symptoms -- whether or not your asthma is under control.
In most cases, you have lung function tests in an exam room that contains special devices to measure lung function. A specially trained respiratory therapist or technician...
The culprit is aspirin, that trusted wonder drug, along with other common over-the-counter (OTC) painkillers. These are medicines we use without thinking twice. But in about one in five people with asthma, these drugs can make symptoms worsen. They can even cause dangerous or even fatal reactions.
"It happens a lot more than people realize," says Phillip E. Korenblat, MD, spokesman for the American Academy of Allergy, Asthma, and Immunology. "If you went to any ER right now, you'd be likely to see people with asthma who were there because of a bad reaction to these drugs."
The problem doesn't end with OTC painkillers. In fact, many remedies for colds, sinus problems, and even indigestion contain the same potentially dangerous ingredients.
So before you grab a bottle of pain reliever for that headache, you need to learn some dos and don'ts.
How Do Pain-Relief Drugs Work?
In a certain way, all pain is in your head. When we feel pain, it's the result of an electrical signal being sent from the nerves in a part of your body to your brain.
But the whole process isn't electrical. When tissue is injured (by a sprained ankle, for instance), the cells release certain chemicals. These chemicals cause inflammation and amplify the electrical signal coming from the nerves. As a result, they increase the pain you feel.
Painkillers work by blocking the effects of these pain chemicals. The problem is that you can't focus most pain relievers specifically on your headache or bad back. Instead, it travels through your whole body. This can cause some unexpected side effects.
What Are the Risks for People with Asthma?
If you have asthma, painkillers called nonsteroidal anti-inflammatory drugs (NSAIDs) can be risky. They include aspirin, ibuprofen, naproxen, and ketoprofen, the active ingredients in medicines like Bufferin, Advil, and Aleve.