In addition, nearly one-third of people who have a DVT will have long-term complications caused by the damage the clot does to the valves in the vein called post-thrombotic syndrome (PTS). People with PTS have symptoms such as swelling, pain, discoloration, and in severe cases, scaling or ulcers in the affected part of the body.
Peak flow demonstrates how quickly you can blow air out of your lungs. The peak flow meter is marked so you can determine how much air you can blow out. The better your asthma is controlled, the more air you will be able to blow out.
Normal peak flow readings vary, depending on your age, size, and sex. The range of normal peak flow readings is published on a chart, and doctors and nurses refer to the chart when they check your peak flow reading.Normally, in healthy people, peak flow readings vary slightly from time to time.f you have untreated asthma: 1  Your peak flow readings will usually be low. 2  No matter how strong you are, if your airways are narrowed, your peak flow will be lower than expected for your age, size, and sex. 3  Your peak flow readings will tend to vary quite a lot.