Category: C

  • Communication board

    Any device with letters, pictures, or words that lets patients with impaired physical and verbal ability express themselves.  

  • Commotio retinae

    Retinal edema and bleeding occurring after blunt ocular trauma.  

  • Commotio cordis

    Sudden death following blunt chest trauma. At autopsy, no pathological findings are demonstrated. The syndrome is believed to be caused by ventricular fibrillation.  

  • Common rule

    Any of the U.S. policies designed to protect the rights and interests of citizens who choose to participate in government-funded biomedical research. Those who choose to participate in biomedical research often suffer from life-altering or life-threatening illnesses. As a result they may be more psychologically vulnerable than others and may agree to become investigative subjects…

  • Common mode rejection ratio

    The ability of an amplifier to amplify a signal in the presence of electrical noise. The higher the number, the better the amplification.  

  • Bedside commode

    A portable toilet that enables a patient to sit comfortably while defecating or urinating. For many patients using a bedside commode is less stressful than using a bedpan.  

  • Committee on accreditation for respiratory car

    An accreditation agency that works with the Commission on Accreditation of Allied Health Programs to ensure the educational quality of programs that provide professional education in respiratory care.  

  • Commissurorrhaphy

    The surgical joining of the parts of a commissure to decrease the size of the opening.  

  • Comminution

    The reduction of a solid body to varying sizes by crushing, grating, hammering, pulverizing, slicing, granulating, and other processes.  

  • Comment period

    The time during which public discussion of health care regulations is invited, e.g., by federal health care agencies. When new governmental rules affecting health care are enacted, their potential effects are usually discussed in advance during open meetings. During this period members of the public, health care insurers, hospitals, clinics, and other agencies make known…