Norm: From 1 Different Sources
The expected value for something measurable. Most people have measurements lying to either side of the norm. Traditionally in medicine, only those lying beyond two standard deviations from the norm are considered likely to be abnormal (approximately 3 per cent of those measured). (See STANDARD DEVIATION.)
The symmetrical clustering of values around a central location. The properties of a normal distribution include: (1) it is a continuous, symmetrical distribution: both tails extend to infinity; (2) the arithmetic mean, mode and median are identical; and (3) its shape is completely determined by the mean and standard deviation.... normal distribution
The precursor of an erythrocyte (see ERYTHROCYTES; BLOOD) which still contains the remnant of a NUCLEUS.... normoblast
Having a BLOOD PRESSURE within the NORMAL range for an individual’s age and sex.... normotensive
A term used in several di?erent senses. Generally speaking, it is applied to anything which agrees with the regular and established type. In chemistry, the term is applied to solutions of acids or bases of such strength that each litre contains the number of grams corresponding to the molecular weight of the substance in question. In physiology the term ‘normal’ is applied to solutions of such strength that, when mixed with a body ?uid, they are ISOTONIC and cause no disturbance: for example, normal saline solution.... normal
A bell shaped curve that results when a normal distribution is graphed.... normal curve
see INR.... international normalized ratio
metabolites of the hormones adrenaline and noradrenaline, respectively. Both hormones are released in excess from a *phaeochromocytoma, and measurement of their metabolites is the most reliable screening test for this rare but potentially lethal condition. The test is best carried out on a complete 24-hour urine collection.... metanephrine and normetanephrine
n. a view of the skull from one of several positions, from which it can be described or measured. For example the norma lateralis is a side view of the skull; the norma verticalis is the view of the top of the skull.... norma
n. (in psychiatry) the process of making the living conditions of people with learning disabilities as similar as possible to those of people who are not disabled. This includes moves to living outside institutions and encouragement to cope with work, pay, social life, sexuality, and civil rights.... normalization
adj. describing a statement about what is or is not desirable (based on accepted standards or norms), as opposed to a statement of what is or is not the case (based on evidence and fact). This distinction between normative and positive statements is of basic importance in medical *ethics.... normative
combining form denoting normality.... normo
n. a red blood cell of normal size. A normocytic anaemia is one characterized by the presence of such cells. —normocytic adj.... normocyte
(euglycaemia) n. the state of having normal blood glucose levels, which – depending on when food was last eaten – are generally between 4 and 7 mmol/l.... normoglycaemia
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