Assertion: nitrous oxide's number | /r/ObjectUse | used for diagnostic testing
Facets:
value: during cardiac catheterization
type: TEMPORAL
Source sentences:
text: Although a number of vasodilators, including intravenous prostacyclin and calcium channel blockers, have been used for diagnostic testing during cardiac catheterization, systemic administration of these agents can produce severe hypotension, increased intrapulmonary right-to-left shunting, and death.37,38