venography
(veh-NAH-gruh-fee)
A procedure in which an x-ray of the veins is taken after a special dye is injected into the bone marrow or veins.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.