The TL,NO /TL,CO ratio cannot be used to exclude pulmonary embolism.
Timon M FabiusMichiel M EijsvogelIvo van der LeeMarjolein Brusse-KeizerFrans H de JonghPublished in: Clinical physiology and functional imaging (2015)
The presented data indicate that the TL,NO /TL,CO ratio cannot be used to exclude PE.