Category: D

A filling or fullness of the supraclavicular groove in an aneurysm of the aortic arch.  

The use of Doppler ultrasound to determine the speed of blood flow through arteries and veins. During pregnancy, for example, Doppler ultrasonography can determine whether blood flow rates are adequate in the uterine artery, placenta, and umbilical cord vessels.  

A slang term used to describe almost any drug of abuse.  

An enzyme in some epithelial cells that converts dopa to melanin.  

The intracytoplasmic inclusion present in the microphages of a patient having granuloma inguinale caused by Klebsiella granulomatis.  

An order stating that a patient should not be revived. It may be written by a physician at the patient’s request. If the patient is not competent or is unable to make such a decision, the family, legal guardian, or health care proxy may request and give consent for such an order to be written…

An advance directive that explicitly limits the transfer of patients from the community to hospitals. Patients or their surrogate decision makers may choose DNH status when they hope to die in familiar surroundings or when they perceive further hospital care to be futile.  

An order somewhat more precise than “do not resuscitate” (DNR). DNR implies that, if a resuscitation attempt is made, the patient can be revived. DNAR indicates that resuscitation efforts should not be attempted regardless of their expected outcome.  

A condition in which an equilibrium is established between two solutions separated by a semipermeable membrane so that the sum of the anions and cations on one side is equal to that on the other side.  

In U S. organ donation, a region of the country usually specified as containing certain counties from which all organs received from non-excluded donors may be obtained by an organ procurement organization.