Author: Glossary

  • Direct medical direction

    A physician giving medical orders on-line, on the telephone or radio, to the EMS provider or to other health care professionals (e.g., athletic trainers, occupational therapists, physical or speech therapists) for the emergency care of a patient in the out-of-hospital environment.  

  • Directed differentiation

    The use of growth factors to stimulate stem cells to specialize into specific adult cells.  

  • Diquat

    A herbicide, chemically related to paraquat, that releases hydrogen peroxide and oxygen radicals when consumed. It can cause nausea, vomiting, renal failure, altered mental status, and cardiac arrhythmias.  

  • Dipylidium caninum

    A common parasite of dogs and cats. Occasionally, human infestation may occur through the accidental ingestion of lice or fleas, which are the intermediate hosts.  

  • Dipylidiasis

    Infestation with the tapeworm Dipylidium caninum.  

  • Dipygus

    Having a double pelvis; said of a congenitally deformed fetus.  

  • Dipterous

    Having two wings; characteristic of the order Diptera.  

  • Dipstick

    A chemical-impregnated paper strip used for analysis of body fluids, principally urine.  

  • Dipping

    Palpation of the liver by a quick depressive movement of the fingers while the hand is held flat on the abdomen.  

  • Vertical diplopia

    Double vision with one of two images higher than the other.