Carbon Monoxide Diffusing Capacity Testing
Also known as: DLCO testing, transfer factor for carbon monoxide, TLCO, lung diffusion testing.
What is carbon monoxide diffusing capacity testing?
Carbon monoxide diffusing capacity testing measures how well the lungs exchange oxygen and carbon dioxide. It’s useful for diagnosing a variety of different breathing problems.
What happens during the procedure?
The patient has a clip placed on the nose, and inhales air that contains carbon monoxide and a tracer gas through a mouthpiece. After holding their breath for 10 seconds, the patient exhales into the mouthpiece. The amount of absorbed tracer gas is measured.
Is any special preparation needed?
The patient may need to avoid smoking, certain medications, and eating heavily before the test.
What are the risk factors?
There are no major risk factors to carbon monoxide diffusing capacity testing.
Reviewed by: Antonio Rodriguez, MD
This page was last updated on: 6/15/2018 8:39:19 AM
VACC Camp is a week-long sleep-away camp for children requiring ventilator assistance (tracheostomy ventilator, C-PAP, BiPAP, or oxygen to support breathing) and their families. Learn more.
Join us for a great day of golf, delicious dinner and exciting auction...all to benefit the children of VACC Camp. Learn more.
From the Newsdesk
The medications that an asthmatic child uses could have effects on the oral mucosa.
The moment Justin was born, his mother and father were faced with the most daunting and challenging experience any parent can imagine. Just hours after birth, Justin was airlifted to Nicklaus Children’s Hospital for more specialized pediatric care. Having been diagnosed with pulmonary atresia and tetralogy of Fallot, he required immediate attention before it was too late.