How Do You Read Spirometer Test Results?
A spirometer is a device used by health professionals to measure abnormal lung function. It is also used to help determine how well a patient is responding to treatment for lung diseases such as asthma. Taking the test involves blowing quickly and hard into a tube attached to a meter. In just a few seconds, your doctor can measure how well you exhale. Read the spriometer graph for forced vital capacity (FVC). When you blow hard and fast into the spirometer, forcing air out of your lungs, this is the maximum volume of air you can exhale. It is measured in liters. Read the spirometer graph for forced expiratory volume in one second, also known as FEV1. When you blow hard and fast into the spirometer, this is the maximum volume of air you exhale in the first second. It is measured in liters per second. Compare the values to healthy individuals in the same age, sex and height groups. Charts show thousands of readings taken from other patients and what normal values are for spirometer test