How to Open .VBF Files. Your machine is currently running: Windows. This repair tool is compatible with your operating system. Inability to open .VBF files and other critical malfunctions can arise when the Windows operating system becomes overloaded with invalid system references, as well as corrupted and deleted registry files. These problems commonly occur due to a lack of regular PC maintenance.
ventilation/perfusion scan. Abbreviation: V/Q scan. An imaging procedure used in the diagnosis of pulmonary embolism. The procedure has two parts: the injection of microscopic spheres into the bloodstream to evaluate perfusion of the lung; and the inhalation of xenon gas to assess pulmonary aeration.
: a clinically compatible case with one or more ulcers (chancres) consistent with primary. syphilis and a reactive serologic test (nontreponemal: Venereal Disease Research Laboratory [VDRL] or rapid plasma reagin [RPR]; treponemal: fluorescent treponemal antibody absorbed [FTA-ABS] or.