Assertion: qt prolongation | /r/DefinedAs | either an absolute qtc
Facets:
value: arbitrarily
type: MANNER
Source sentences:
text: Significant QT prolongation in the setting of acquired LQTS is arbitrarily defined as either an absolute QTc >500 ms or a 25% increase in QTc interval over baseline.
text: Congenital QT prolongation is considered an absolute contraindication to the use of the following medications: