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.
Totalflow flow meters employ a 250 ohm resistor to convert the 4-20 milliamp transmitter. current loop to a 1-5VDC signal. In some meters this conversion is made by attaching a 250 ohm. resistor across the 4-20ma input pins (see Fig. 1-2A). Some meters use a small three-pin jumper.