![]() Examples of when we would not consider you to be medically stable include when you are: You must be medically stable at the time of the test.We have the following requirements for spirometry under these listings:.Regardless of whether the values are from the same forced expiratory maneuver or different forced expiratory maneuvers. We use your highest FEV 1 value to evaluate your respiratory disorder under 3.02A,Īnd your highest FVC value to evaluate your respiratory disorder under 3.02B, The total volume of air that you exhale during the entire forced expiratory maneuver is the FVC. The volume of air you exhale in the first second of the forced expiratory maneuver is the FEV 1. Spirometry, which measures how well you move air into and out of your lungs, involves at least three forced expiratory maneuvers during the same test session.Ī forced expiratory maneuver is a maximum inhalation followed by a forced maximum exhalation, and measures exhaled volumes of air over time.What is spirometry and what are our requirements for an acceptable test and report? Pulmonary function tests include spirometry (which measures ventilation of the lungs), DLCO tests (which measure gas diffusion in the lungs), ABG tests (which measure the partial pressure of oxygen, PaO 2, and carbon dioxide, PaCO 2, in the arterial blood), and pulse oximetry (which measures oxygen saturation, SpO 2, of peripheral blood hemoglobin).Į.The imaging must be consistent with the prevailing state of medical knowledge and clinical practice as the proper technique to support the evaluation of the disorder. Imaging refers to medical imaging techniques, such as x-ray and computerized tomography.If you use supplemental oxygen, we still need medical evidence to establish the severity of your respiratory disorder.We may not need all of this evidence depending on your particular respiratory disorder and its effects on you. Pulmonary function tests (see 3.00D4), other relevant laboratory tests, and descriptions of any prescribed treatment and your response to it. Medical evidence should include your medical history, physical examination findings, the results of imaging (see 3.00D3), ![]()
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