Category: A

An air current directed onto the body for therapeutic purposes, usually directed to the tympanum for opening the eustachian tube.  

An investigation of different drug dosages to determine if any of the selected doses is better tolerated or more effective than the others.  

The intensity of radiation measured in air at the target. The measurement of x-ray dose in roentgens at a specific location in unrestricted airspace, encompassing the combined radiation emitted by the primary x-ray beam as well as the scattered radiation originating from the surrounding air, is determined using the Victoreen R-meter.  

Diverticulitis in which the symptoms are similar to those of appendicitis but usually located in the left rather than the right lower quadrant of the abdomen: inflammation of the peritoneum, formation of an abscess, and in untreated patients, intestinal gangrene accompanied by perforation.  

Dissociation that occurs when the independent pacemakers of the atria and ventricles of the heart are not synchronized. This is a hallmark of third-degree heart block.  

Traumatic displacement of the talocrural joint with or without concurrent fracture of the tibial or fibular malleoli, or both.  

A disease that may be predicted to occur in individuals with a certain genetic, physical, or environmental predisposition.  

The passage of current through an insulating medium due to the breakdown of the medium under electrostatic stress.  

Digestion occurring outside the living organism by an enzyme.  

A diet designed to produce an alkaline urine. It contains foods such as fruits, vegetables, and milk and is lacking in meat, fish, eggs, and cereals.