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Diffusing capacity for carbon monoxide

DLCO or TLCO (diffusing capacity or transfer factor of the lung for carbon monoxide (CO),) is the extent to which oxygen passes from the air sacs of the lungs into the blood. Commonly, it refers to the test used to determine this parameter. It was introduced in 1909.

Factors affecting DLCO, Mechanism & DLCO vs TLCO

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Factors affecting DLCO

FibrosisAlveolitisVasculitisRestrictive lung diseaseChronic obstructive pulmonary disease
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Mechanism

Partial pressureRed blood cellsCardiac outputCarboxyhemoglobin
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DLCO vs TLCO

KPa
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Significance of results

FEV1
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DLCO vs TLCO

Factors affecting DLCO

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Diffusing capacity for carbon monoxide

Nodes32
Edges31
Triples0
Avg. degree1.94
Density0.0625
Components1

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Important terminology

dlco lung blood factors tlco capacity carbon monoxide test hemoglobin decrease also area resection value diffusing factor co increase alveolar

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