Glossary

Author: Glossary

  • Duty cycle

    During chest compressions of a victim of cardiac arrest, the relative amount of time that the chest is compressed compared to the time that the chest is allowed to recoil to its fully inflated position. A cycle of 50% occurs when chest compression equals chest recoil.  

  • Duty of care

    The legal and moral obligation to act responsibly and prudently, e.g., to avoid taking actions that one may foresee as being potentially hazardous to others.  

  • Absorbable dusting powder

    Powder prepared from cornstarch. It is used as a lubricant for surgical gloves.  

  • Dusting powder

    Any fine powder for dusting on skin.  

  • Dust cell

    A macrophage in the walls of the alveoli of the lungs that ingests pathogens and particles of air pollution.  

  • House dust

    The total of particles present in the air in a house. Materials included are mites, hairs, fibers, pollens, and smoke particles.  

  • Ear dust

    Fine calcified bodies found in the gelatinous substance of the otolithic membrane of the ear; otoconium or otoliths.  

  • Duroziez murmur

    The systolic and diastolic murmur heard over peripheral arteries in patients with aortic insufficiency. The murmur is audible when pressure is applied to the area just distal to the stethoscope.  

  • Duroarachnitis

    Inflammation of the dura and the arachnoid membrane.  

  • Duritis

    Inflammation of the dura.