Category: D

  • Demented

    Chronically cognitively impaired.  

  • Dematiaceous

    To fungi having a dark brown or black appearance. The dark pigment is found in the hyphae or the conidia.  

  • Dematiaceae

    A family of fungi that contain melanin in their cell walls and have a dark color. They occasionally infect humans, especially those who are immunocompromised.  

  • Demasculinization

    Loss of male sexual characteristics. This may be caused by lack of the male hormone or by the action of certain drugs. The absence of typical male secondary sexual characteristics in males is characterized by the term “demasculinization.” This encompasses diminished facial hair growth, along with testicular atrophy (degeneration of the testes) and reduction in…

  • Demand valve manually cycled resuscitator

    A multifunction resuscitator that uses high-flow oxygen. This device often can be triggered by negative pressure caused by an inhaling patient as well as operated by a button while the operator watches the patient’s chest rise. During resuscitation, it is necessary to use the positive pressure aspect of this device and manually trigger or compress…

  • Demand-induced ischemia

    Insufficient blood flow to meet the needs of the heart produced by tachycardia and relative hypotension rather than by flow-limiting blockages within the coronary arteries. Demand ischemia may occur in atrial fibrillation with a rapid ventricular response; in hypotension or hypovolemia; or in sepsis or the systemic inflammatory response syndrome.  

  • Delusion of persecution

    A delusion in which patients believe people or agencies are seeking to injure or harass them.  

  • Depressive delusion

    A delusion causing a saddened state.  

  • Delusion of control

    A delusion that one’s thoughts and actions are under the control of an external force.  

  • Deltacortisone

    Prednisone, a steroid hormone with glucocorticoid activity.