Category: W

A filter used in radiography and radiation therapy to vary the intensity of the x-ray beam. This compensates for differences in the thicknesses of the parts being exposed to radiation.  

A line or plane worn on a tooth surface by attrition.  

A comprehensive assessment of functional status based on simulated physical demands of a job. Typically, a comprehensive work capacity evaluation includes timed, performance-based demonstrations of standing, sitting, walking, kneeling, crawling, pushing, pulling, lifting, reaching, carrying, balance, flexibility, dexterity, hand strength, and coordination.  

A mild type of viral encephalitis that has occurred in the western U.S. and Canada.  

A dressing consisting of gauze moistened with prescribed solution (e.g., sterile saline) applied directly and conforming to the wound and covered with dry gauze pads and a bandage. Gentle removal of the dressing after it has dried provides some degree of debridement of the wound; the process is then repeated at intervals.  

A dressing consisting of gauze, cotton, or similar material that is kept wet by the application of sterilized water.  

A dressing that most commonly uses a heated normal saline solution. The sterile towel is unfolded, and the gauze dressing is dropped into it. Then the center of the towel is immersed in solution and wrung out by turning the dry ends in opposite directions. The dressing is applied with sterile forceps directly to the…

A diet with inadequate fruits, vegetables, whole grains, legumes, fish, and low-fat dairy products and excessive amounts of refined and processed foods, alcohol, salt, red meats, sugary beverages, snacks, eggs, and butter. The Western diet, which is low in potassium, high in sodium, fats, and simple carbohydrates, has been implicated in many diseases, including atherosclerosis,…

Severe gastroenteritis that sometimes occurs in infants who recently have been weaned.  

A padded surface for wheelchair seats designed to prevent pressure sores. There are several static varieties, including air-filled, polyurethane foam, and flotation, the latter filled with water or gel. Dynamic surfaces, which require an external power source, protect pressure points by alternating high and low air pressures through a system of valves and pumps.