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1. transient episodic redness of the face and neck caused by certain diseases, ingestion of certain drugs or other substances, heat, emotional factors, or physical exertion.
2. the rapid delivery of a bolus of solution through an intravenous line or catheter for the purpose of maintaining patency or insuring the complete delivery of all fluids in the lumen.
hectic flush a persistent or chronic flush associated with chronic debilitating disease, usually febrile.
heparin flush a dilute solution of heparin that is used to flush an intravenous line or arterial catheter.
malar flush a redness of the cheeks caused by excitement.
redness of the face associated with a rise of temperature in various fevers.
hec·tic flush(hektik flŭsh)
Redness of face associated with feverish rise of temperature.