Also found in: Dictionary, Thesaurus, Encyclopedia.
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.
localized hectic flush and warmth of the malar eminences, often occurring in tuberculosis and sometimes seen in rheumatic fever or systemic lupus erythematosus.
A bright-colored flush over the malar area and cheekbones. It may be associated with any febrile disease.
See also: flush