DLCO Test Explained: How Carbon Monoxide Diffusion Testing Works #3463315 (License: Personal Use)

In this clinical illustration, a healthcare provider uses a handheld spirometer connected to a DLCO gas cylinder to measure carbon monoxide uptake in the lungs, while a colleague records and interprets the resulting waveform on a monitor. The test evaluates alveolar-capillary membrane integrity and is critical for diagnosing conditions like pulmonary fibrosis or emphysema. Proper technique ensures accurate assessment of gas transfer efficiency.

This image is used on pulmonology, respiratory therapy, or diagnostic testing web pages to visually explain the DLCO procedure. It supports user intent around understanding lung function tests, preparing for medical appointments, or educational content for healthcare students.