Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «D»:
Distal: The more (or most) distant of two (or more) things. For example, the distal end of the femur (the thigh bone) is the end down by the knee; the end more distant from the torso. The distal bile duct is the far end of the cystic duct, the end away from the gallbladder. And the distal lymph node...
Distance healing: Healing in which people seek to help patients simply with the power of the mind. Distance healing can include anything from therapeutic touch -- in which practitioners, without touching their patients, try to alter their energy fields -- to praying for people who are ill.
Distention: The state of being distended, enlarged, swollen from internal pressure.
For example, on inhalation there is distention of the lungs due to the increased air pressure within the lungs.
The word "distention" comes from a Latin root "tendere," to extend. The word "tendon" comes from the sa...
Distichiasis: Double rows of eyelashes. The extra eyelashes grow from glands called the Meibomian glands and may protrude into the cornea, producing severe corneal abrasions....
Diuresis: The increased formation of urine by the kidney. See diuretic for more detail....
Diuretic: Anything that promotes the formation of urine by the kidney. (The word "diuretic" comes from a combination of the Greek "dia-", thoroughly + "ourein", to urinate = to urinate thoroughly).
Diuresis may be due to a huge number of causes including metabolic conditions such as diabetes mellit...
Diurnal: Occurring in the daytime. A patient may
have a diurnal fever
than a nocturnal one. Diurnal also can refer to recurring
Pronounced die-URN-ul, it comes from the Latin "dies" for
day, the root of
many words including circadian (about a day, about 24
Diverticula: The plural of diverticulum. As a person
ages, pressure within the large intestine (colon) causes pockets of tissue (sacs) that
push out from the colon walls. A small bulging sac pushing outward from the colon wall is
a diverticulum. Diverticula can occur throughout the colon but are mos...
Diverticulitis: Inflammation of the diverticula
outpouchings) along the wall of the colon, the large intestine. (One
outpouching is a diverticulum;
two or more are
For diverticulitis to occur, there must be diverticulosis, the
presence of diverticula. Diverticulosis can occ...
Diverticulitis, bleeding from
Diverticulitis, bleeding from: Diverticular bleeding
typically occurs intermittently over several days. Colonoscopy is usually performed to
confirm the diagnosis and exclude bleeding from other causes. Thermal probes cannot be
employed to stop active diverticular bleeding. Therefore, surgical remova...
Diverticulitis, treatment of acute
Diverticulitis, treatment of acute: Antibiotics are
usually needed. Oral antibiotics are sufficient when symptoms are mild. Liquid or low
fiber foods are advised during acute diverticulitis attacks. In severe diverticulitis with
high fever and pain, patients are hospitalized and given intravenous a...
Diverticulosis: Diverticulosis is the
condition of having diverticula, small outpouchings from
the large intestine, the colon. (One outpouching is a diverticulum;
two or more are
Diverticulosis can occur anywhere in the colon but it is most
typical in the sigmoid colon, the S-shap...
Diverticulosis/diverticulitis and fiber
Diverticulosis/diverticulitis and fiber: High fiber
diets help delay the progression of diverticulosis and, at least, reduce the bouts of
Diverticulum: A small bulging sac pushing outward from
the colon wall is a diverticulum. As a person ages, pressure within the large intestine
(colon) causes pockets of tissue (sacs) that push out from the colon walls. The plural is
diverticula. Diverticula can occur throughout the colon but are mos...