Category: R

  • Risk-benefit ratio

    A comparison of the value of a drug in treating or preventing morbidity with the hazards of its use, leading to a conclusion to use the drug or to find an alternative.  

  • Risk-benefit principle

    An ethical principle that requires that the potential benefits of research outweigh the risks to participants in the study.  

  • Risk behavior

    A lifestyle that tends toward threatening health. A behavior that increases a person’s chance of a harmful outcome.  

  • Ripple effect

    The tendency for innocent members of a group to feel threatened by the reprimand directed toward one or more misbehaving persons.  

  • Ringer’s lactate

    A sterile solution of sodium chloride, potassium chloride, and calcium chloride in water for injection is given as a fluid and electrolyte replenisher by intravenous injection.  

  • Rigor mortis

    Rigidity of the body that occurs after death. A condition in which the muscles of a dead body become stiff after death and then become relaxed again. Stiff rigid muscles characteristic of death. Rigid stiffening of the skeleton and some muscles shortly after death. The temporary stiffening of the muscles of the body after death.…

  • Rigor

    A chill. An attack of shivering, often with fever. Rigidity of the tissues of the body, as m rigor mortis. A rigidity of muscle tissue that prevents the muscle from responding to stimulation. An abrupt attack of shivering and a sensation of coldness, accompanied by a rapid rise in body temperature. This often marks the…

  • Rigid splint

    A splint made from a firm material, either unbending or flexible, to be applied to an injured extremity to prevent motion at the site of a fracture or dislocation.  

  • Rigid control

    An ego defense mechanism involving reliance upon inner restraints: suppression, repression, and reaction formation.  

  • Right to treatment

    A legal principle according to which a patient must receive at least minimal treatment, in terms of amount and quality, that will provide a realistic opportunity for meaningful improvement.