Category: V

  • Ventilator-induced lung injury

    Damage to alveoli or alveolar capillaries caused by high airway pressures, excessive tidal volumes, or repeated expansion and collapse of the alveoli during mechanical ventilation. It can produce local inflammatory lung destruction and the release of inflammatory molecules throughout the systemic circulation.  

  • Vaginal injection

    A historical term describing the instillation of fluid into the introitus; douche.  

  • Vital index

    The ratio of the number of births to the number of deaths in a population over a stated period of time.  

  • Venous incompetence

    Inability of a vein to prevent the backward flow of blood because of valve diseases or complications of deep venous thrombosis.  

  • Valvular incompetence

    The backward flow of blood through a valve, e.g., a cardiac valve during the stage of the cardiac cycle when the valve leaflets should be closed.  

  • Vasculogenic impotence

    Impotence due to an inadequate supply of arterial blood to the corpora cavernosa of the penis.  

  • Varicella zoster immune globulin

    An immune globulin used for passive immunization of susceptible immunodeficient individuals after significant exposure to varicella. VZIG does not modify established varicella-zoster infections. An immune globulin obtained from the blood of healthy persons found to have high antibody titers to varicella-zoster. A compound with the potential to alleviate the intensity of symptoms associated with chickenpox.…

  • Vasomotor imbalance

    Excessive vasoconstriction or vasodilation.  

  • Visual imagery

    A mental concept of an object seen previously.  

  • Vaginal hysterectomy

    The surgical removal of the uterus through the vagina. Surgical procedure to remove the uterus through the vagina rather than making an incision in the abdominal wall.