| impaired glucose tolerance | Blood glucose (sugar) levels higher than normal but not high enough to be called diabetes. People with impaired glucose tolerance may or may not develop diabetes. Other names (no longer used) for impaired glucose tolerance are borderline, subclinical, chemical, or latent diabetes. (30 Mar 1998) |
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| impairment | A physical or mental defect at the level of a body system or organ. The official WHO definition is: any loss or abnormality of psychological, physiological or anatomical structure or function. (05 Mar 2000) |