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What is Gas used to measure the diffusion capacity of lung and explain in detail?
Diffusion Capacity. Diffusion capacity assesses how well a tracer gas in inspired air can cross from the air into the blood. The test measures the absorption of a low concentration of carbon monoxide in inhaled air by hemoglobin in red blood cells that circulate through pulmonary capillaries. Ref: guyton and hall textbook of medical physiology 12 edition page number: 348,349,350