ketone body

ketone body

n.

A ketone-containing substance, such as acetoacetic acid, that is an intermediate product of fatty acid metabolism, tends to accumulate in the blood, and is excreted in the urine of individuals affected by starvation or uncontrolled diabetes mellitus. Also called acetone body.

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body,

n any mass or collection of material.

body burden,

n the activity of a radiopharmaceutical retained by the body at a specified time after administration.

body dysmorphic disorder (BMD),

n See disorder, body dysmorphic.

body fluid,

n a liquid portion of the body such as plasma, lymph, tears, saliva, and urine.

body, foreign,

n an object or material that is not normal for the area in which it is located.

body height,

n the overall length of the body from the crown to the bottom of the feet, usually taken in the standing position. Body length refers to the overall length taken in the supine position.

body image,

n a person's subjective concept of personal physical appearance. The loss of a limb, breast, or tooth may cause psychologic trauma because of unresolved conflict in the change of body image. A distorted body image may be a causal factor in anorexia nervosa and bulimia. See also disorder, body dysmorphic (BDD).

body, ketone,

n any of the compounds acetoacetic acid, betahydroxybutyric acid, and acetone that are formed in the liver and released in the blood. Elevated levels occur during excessive fat use such as in diabetes or starvation. See also ketoacidosis.

body mass index (BMI) calculation,

n a method for assessing obesity and determining optimal weight, which involves dividing body weight in kilograms by height in square meters.

body mechanics,

n the field of physiology that investigates actions and functions of the muscular system relating to body posture maintenance.

body, Schaumann's

n.pr a round to oval cytoplasmic inclusion composed of concentric deposits of an amorphous material. Present in the giant cells of sarcoidosis, in beryllium lesions, and sometimes in other giant cells.

body shields,

n.pl protective coverings patients are sometimes legally required to wear during radiographic examinations; usually a leaded apron containing lead 0.25 mm thick. The protective surface covers the torso and gonads.

body temperature,

n the level of heat produced and sustained by body processes. Variations and changes in body temperature are major indicators of disease and other abnormalities.

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ketone

(kē´tōn),
n an organic chemical compound characterized by having in its structure a carbonyl or keto group attached to two alkyl groups. It is produced by oxidation of secondary alcohols.

ketone body,

n See body, ketone.