| NPV | negative predictive value; pressure value; negative pressure ventilation; net present value; nuclear... |
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| BSID | Boyley Scales of Infant Development; Boyley À¯¾Æ ¹ß´Þ ôµµ |
| KAS | Katz Adjustment Scales; Kennedy-Alter-Sung [syndrome] |
| KSP | Karolinska Scales of Personality; kidney-specific protein |
| RBRVS | resource-based relative value scale |
| HRSD | Hamilton Rating Scales for Depression |
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| RVU | Relative Value Units |
| RBV | Relative biological value |
| RBRVS | Resource Based Relative Value Scale |
| HVL | 6-half-value layer |
| relative value scales | Coded listings of physician or other professional services using units that indicate the relative value of the various services they perform. They take into account time, skill, and overhead cost required for each service, but generally do not consider the relative cost-effectiveness. Appropriate conversion factors can be used to translate the abstract units of the relative value scales into dollar fees for each service based on work expended, practice costs, and training costs. (12 Dec 1998) |
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| adaptive behaviour scales | A behavioural assessment device to quantify the levels of skills of mentally retarded and developmentally delayed individuals in interacting with the environment; consists of three developmentally related factors: 1) personal self-sufficiency, e.g., eating, dressing; 2) community self-sufficiency, e.g., shopping, communicating; 3) personal and social responsibility, e.g., use of leisure time, job performance. See: intelligence. (05 Mar 2000) |
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| Bayley Scales of Infant Development | A psychological test used to measure the developmental progress of infants over the first two and one-half years of life; consists of three scales: mental, motor, and behaviour record. (05 Mar 2000) |
| Wechsler intelligence scales | Continuously revised and updated standardised scale's for the measurement of general intelligence in preschool children (Wechsler preschool and primary scale of intelligence), in children (Wechsler intelligence scale for children), and in adults (Wechsler adult intelligence scale, the successor to the Wechsler-Bellevue scale). (05 Mar 2000) |
| wechsler scales | Tests designed to measure intellectual functioning in children and adults. (12 Dec 1998) |
| psychiatric status rating scales | Standardised procedures utilizing rating scales or interview schedules carried out by health personnel for evaluating the degree of mental illness. (12 Dec 1998) |
| blood relative | A relative of a person sharing some of the sources from which genes are derived. These will include many of the genes that operate in the blood and its constituents but no special importance attaches to the blood as a vehicle of inheritance. Spouses are not ordinarily blood relatives and when they are, the marriage is consanguineous and carries a higher risk than average of progeny homozygous by descent from ancestors in common. Such marriages are discouraged and within certain degrees of kindred may be illegal. Origin: a folk metaphor of breeding (05 Mar 2000) |
| relative | One who, or that which, relates to, or is considered in its relation to, something else; a relative object or term; one of two object or term; one of two objects directly connected by any relation. Specifically: A person connected by blood or affinity; strictly, one allied by blood; a relation; a kinsman or kinswoman. "Confining our care . . . To ourselves and relatives." . A relative prnoun; a word which relates to, or represents, another word or phrase, called its antecedent; as, the relatives " who", "which", "that". Source: Websters Dictionary (01 Mar 1998) |
| relative accommodation | Quantity of accommodation required for single binocular vision for any specified distance, or for any particular degree of convergence. (05 Mar 2000) |
| relative afferent pupillary defect | An asymmetry of the pupillomotor input between the two eyes; tested by alternating the light from one eye to the other and comparing the direct light reactions. (05 Mar 2000) |
| relative aperture | <microscopy> The ratio of the focal length of a lens to the diameter of its entrance pupil. This gives a number known as the f-number, usually written f:8, f:16, etc. Thus, if the focal length is divided by the number 8, 16, etc., the result will be the diameter of the entrance pupil of the lens, or if the diaphragm of the lens is wide open it will be very nearly the diameter of the free aperture of the lens. See: F-number. (05 Aug 1998) |
| relative basal area | An estimate of basal area for trees, such as produced by the Bitterlich sampling technique. (09 Oct 1997) |
| relative biological effectiveness | The ratio of radiation dosages required to produce identical change based on a formula comparing other types of radiation with that of gamma or roentgen rays. (12 Dec 1998) |
| relative dehydration | Water deficit relative to content of solutes contributing effective osmotic pressure; a state of increased effective osmotic pressure of body fluids. (05 Mar 2000) |
| relative immunity | A modified, not completely effective resistance that results when there is a sort of "fluctuating equilibrium" between the defense mechanisms of the host and the infective agent. (05 Mar 2000) |
| relative incompetence | Imperfect closure of a cardiac valve, in consequence of excessive dilation of the corresponding cavity of the heart. (05 Mar 2000) |
Synonyms : Resource Based Relative Value Scale, Relative Value Scale, Relative Value Schedules, Relative-Value Schedule, Scale, Relative Value, Scales, Relative Value, Schedule, Relative-Value, Schedules, Relative-Value
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