High Altitude Simulation Test

High Altitude Simulation Test (HAST) is a type of pulmonary function test that mimics the lower oxygen levels found at high altitudes, like in mountainous regions. During the test, you breathe in air that replicates these conditions, allowing doctors to assess how well your lungs function under stress. It helps identify how well your body can handle situations with less oxygen, which is particularly important for people who plan to travel to high altitudes or have certain lung conditions. This test can guide medical decisions and ensure your safety in high-altitude environments.