preductal

Definitions

Proximal to a ductus (for example, the ductus arteriosus).

not-comparable

Examples

“Aortic coarctation is congenital focal narrowing of the aorta in the region of the ductus arteriosus. It may be preductal (proximal to the ductus, illustrated on the right [in the original]), periductal, or postductal.”

“Criteria for endotracheal intubation were dissatisfying response to non-invasive ventilation defined as absent or insufficient increase⟳ in HR and/or preductal oxygen saturation (SpO₂) despite supplemental oxygen.”

CEFR level