index

Index,

in the Roman Catholic Church, list of publications forbidden to be read, called Index librorum prohibitorum [list of forbidden books]. This censorship was exercised by the Holy See. Catholics are forbidden, as a natural part of ethics, to read anything they know may endanger their faith or moral life; the Index was a partial guide to such literature. Since it was made up only from decisions referred for judgment on specific works, there was no consistency of inclusion; the failure of a book to appear in it implied nothing. The last edition of the Index was published in 1948. In 1966 the Congregation for the Doctrine of the Faith (formerly, the Holy Office) announced that the Index and its related penalties of excommunication would no longer have the force of law in the church.

index,

of a book or periodical, a list, nearly always alphabetical, of the topics treated. This list is usually at the back of a book, and the table of contents is in the front. The index seeks to direct the reader to all names and subjects on which the book has information. The subject, with the number of the page on which related information is to be found, is called the entry. In an index to a periodical the entries are less specific, referring usually to an article as a whole rather than to every subject touched upon in each article. Indexing requires experience and skill, since it is necessary not only to grasp the meaning of the author but to phrase that meaning clearly and in such a way as to place it alphabetically where the reader is likely to look first. Books written to give information are of little value unless properly indexed. Indexes to books were made long before the invention of printing. In the 16th cent. the term index began to be commonly applied to such a list; until the 17th cent. the index was rarely alphabetical. Diderot's famous EncyclopédieEncyclopédie
, the work of the French Encyclopedists, or philosophes. The full title was Encyclopédie; ou, Dictionnaire raisonné des sciences, des arts, et des métiers.
..... Click the link for more information. (1751–1772) had an alphabetical index. In 1848 in the United States a general index to the most widely circulated periodicals of the time was issued by William Frederick Poole. Poole's Index, later compiled cooperatively, continued until 1907, when it was superseded by the Readers' Guide to Periodical Literature. There are special indexes in various fields of knowledge, e.g., law, medicine, art, education, engineering, industrial arts, agriculture. Newspaper indexes include those to the London Times (from 1906) and the New York Times (from 1851). Indexes are increasingly being compiled by computer, and published as on-line databases and in CD-ROM format. The H. W. Wilson and R. R. Bowker companies are noted for special annual indexes, particularly the Readers' Guide to Periodical Literature, the Cumulative Book Index, and Ulrich's International Periodicals Directory. Indexes to illustrations, to artifacts, to formulas, and to various collections of materials are common. Some are alphabetical; others may be by number, color, or some other scheme. The catalogcatalog,
descriptive list, on cards or in a book, of the contents of a library. Assurbanipal's library at Nineveh was cataloged on shelves of slate. The first known subject catalog was compiled by Callimachus at the Alexandrian Library in the 3d cent. B.C.
..... Click the link for more information. of the books in a library is sometimes known as an index.

Bibliography

See M. D. Anderson, Book Indexing (1971); R. L. Collison, Indexes and Indexing (4th ed. 1972); J. Rowley, Abstracting and Indexing (2d ed. 1988); D. B. and A. D. Cleveland, Introduction to Indexing and Abstracting (2d ed. 1990).

Index

a list of common names, proper names, printed and written works, formulas and symbols, or other items; these items are arranged alphabetically according to subject, chronologically, or numerically. An index provides rapid access to information in a book, journal, or audiovisual source. In terms of content and intended use, there are two principal types of index: bibliographic and auxiliary.

The bibliographic index is a type of bibliographic aid whose entries are generally arranged in systematic order. An important reference source, the bibliographic index generally consists of two parts: a main index—the information file—and a supplementary index, which aids in the retrieval of information not revealed by the grouping of material in the main index. Abroad, main (subject) and supplementary (name) indexes are sometimes combined in an alphabetic, or dictionary, index.

The supplementary index is used as a guide to a given text. It contains a list of systematically arranged entries that name or designate items in the text, see and see also cross-references that link semantically similar but lexically different concepts, and references to page numbers, chapters, paragraphs, and bibliographic entries. An important element of the reference apparatus, the supplementary index is an efficient means of retrieving information and of reading selectively. The supplementary index also provides a concrete idea of the semantic structure of a given work. Supplementary indexes are used in scientific and scholarly publications, bibliographic aids, library catalogs, archive inventories, and collections of audiovisual materials.

There are several types of supplementary indexes. They differ according to content, that is, by using headings representing proper names (personal, geographic, and organizational); subjects; the names of published works or the first lines of poems; citations, abbreviations, symbols, and formulas. Thus, there are indexes of names, subject indexes, indexes of geographic names, and citation indexes. Supplementary indexes also differ according to the manner of grouping the material: there are alphabetic, thematic, classified, and chronological indexes.

The headings of an index may be simple, consisting of a word or phrase, or they may be complex, that is, they may consist of headings and subheadings. Indexes consisting only of simple headings are called blind indexes, and those consisting of complex and simple headings are called expanded, or analytic, indexes. When indexes provide additional information in the form of annotations, direct citations from the text, or definitions, they are called annotated indexes.

An index may be printed as part of a larger work, it may be published separately, or it may be printed on punched or un-punched cards. The type of index or system of indexes used depends on the type of publication, its subject matter, and the intended readership. The reference apparatus of the fifth edition of V. I. Lenin’s Complete Collected Works has an elaborate system of indexes.

With the development of computer technology in the mid-20th century, new types of indexes were used for the retrieval of information. These indexes were generally prepared with the aid of digital computers and were based on the principle of coordinate indexing; they included indexes of cited works, permutation indexes, and coordinate indexes.

Indexes of cited works (bibliographic references) are alphabetized lists of the surnames of authors with the names of their works that have been referred to in a given text. The references also provide brief information on publications in which the works of these authors are cited. A full description of these publications is given in a separate source index. Indexes of cited works are helpful in solving problems of science analysis and forecasting.

The permutation index is a type of auxiliary alphabetic subject index in which significant words in the titles of the indexed documents or in their abstracts function as subject headings. Each such word is entered sequentially in a retrieval column and separated by a space from the other words of the title or abstract that form the context of the subject heading. This type of index is also called an index of key words cited in context. Each entry in the permutation index has an identification number, a full description of which is found in the bibliographic section of the index. Other types of permutation indexes are the double permutation index, in which the key words are used as traditional subject headings; the index of key words cited out of context; and the quasipermutation index, which contains instead of titles sequences of descriptors from the retrieval patterns of documents.

The coordinate, or correlative, index facilitates the correlation of two or more terms that are not necessarily in alphabetical order (as in the subject index) or in a meaningful hierarchical order (as in the thematic index).

REFERENCES

Mikhailov, A. I., and R. S. Giliarevskii. Istochniki, poisk i ispol’zovanie nauchnoi informatsii. Moscow, 1970.
Chernyi, A. I. Vvedenie v teoriiu informatsionnogo poiska. Moscow, 1975.
Prizment, E. L., and E. A. Dinershtein. Vspomogatel’nye ukazateli k nauchnoi knige. Moscow, 1975.
Collison, R. L. Indexes and Indexing, 3rd ed. London-New York, 1969.

R. S. GILIAREVSKII and E. L. PRIZMENT

index

[′in‚deks] (computer science) A list of record surrogates arranged in order of some attribute expressible in machine-orderable form. To produce a machine-orderable set of record surrogates, as in indexing a book. To compute a machine location by indirection, as is done by index registers. The portion of a computer instruction which indicates what index register (if any) is to be used to modify the address of an instruction. (mathematics) Unity of a logarithmic scale, as the C scale of a slide rule. A subscript or superscript used to indicate a specific element of a set or sequence. The number above and to the left of a radical sign, indicating the root to be extracted. For a subgroup of a finite group, the order of the group divided by the order of the subgroup. For a continuous complex-valued function defined on a closed plane curve, the change in the amplitude of the function when traversing the curve in a counterclockwise direction, divided by 2π. For a quadratic or Hermitian form, the number of terms with positive coefficients when the form is reduced by a linear transformation to a sum of squares or a sum of squares of absolute values. For a symmetric or Hermitian matrix, the number of positive entries when the matrix is transformed to diagonal form. winding number (physics) A numerical quantity, usually dimensionless, denoting the magnitude of some physical effect, such as the refractive index.

index

1. Mathsa. another name for exponentb. a number or variable placed as a superscript to the left of a radical sign indicating by its value the root to be extracted, as in ³ÝA8 = 2 c. a subscript or superscript to the right of a variable to express a set of variables, as in using x_i for x₁, x₂, x₃, etc 2. a number or ratio indicating a specific characteristic, property, etc.

index

(Plural "indices" or "indexes")

1. A number used to select an element of a list,vector, array or other sequence. Such indices are nearlyalways non-negative integers but see associative array.

2. See inverted index. 3. A search engine.

4. A subject index.

index

(1) See indexed color.

(2) A common method for keeping track of data so that it can be accessed quickly. Like an index in a book, it is a list in which each entry contains the name of the item and its location. However, computer-based indexes may point to a physical location on a disk or to a logical location that points elsewhere to the actual location.

Indexes are used by all types of software, including the operating system, database management system (DBMS) and applications. For example, the file system index in an operating system contains an entry for each file name and the starting location of the file on disk. A database index has an entry for each key field (account number, name, etc.) and the location of the record. Search engines use a very sophisticated indexing system to keep track of billions of pages on the Web.

(3) In programming, a method for accessing data in a table. See subscript and inverted file.

Types of Indexes

Indexes are widely used to keep track of the physical location of files on the disk as well as the logical location of data within a database. On the other hand, a programming index is a counter that is incremented to point to a relative location in a table.

See index

index

(pl. indexes, in´dices) (L.) 1. the numerical ratio of measurement of any part in comparison with a fixed standard.2. forefinger.Barthel index an objective, standardized tool for measuring functional status. The individual is scored in a number of areas depending upon independence of performance. Total scores range from 0 (complete dependence) to 100 (complete independence).bleeding index any of various methods of assessing bleeding in the gingival sulcus before or after treatment.body mass index (BMI) the weight in kilograms divided by the square of the height in meters, a measure of body fat that gives an indication of nutritional status.cardiac index cardiac output corrected for body size.cephalic index 100 times the maximum breadth of the skull divided by its maximum length.citation index an index listing all publications appearing in a set of source publications (e.g., articles in a defined group of journals) that cite a given publication in their bibliographies.Colour index a publication of the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists containing an extensive list of dyes and dye intermediates. Each chemically distinct compound is identified by a specific number, the C.I. number, avoiding the confusion of trivial names used for dyes in the dye industry.erythrocyte indices the volume" >mean corpuscular volume, hemoglobin" >mean corpuscular hemoglobin, and concentration." >mean corpuscular hemoglobin concentration. These are all useful for evaluating anemias because they provide information on the size of the erythrocytes and the concentration of hemoglobin. Called also red cell or red blood cell indices.glycemic index a ranking of foods based on the response of postprandial sugar" >blood sugar levels as compared with a reference food, usually either white bread or glucose. See table.left ventricular stroke work index (LVSWI) an index of the amount of work performed by the heart.leukopenic index a fall of 1000 or more in the total leukocyte count within 1.5 hours after ingestion of a given food; it indicates allergic hypersensitivity to that food.index Medicus a monthly publication of the national library of medicine in which the world's leading biomedical literature is indexed by author and subject.opsonic index a measure of opsonic activity determined by the ratio of the number of microorganisms phagocytized by normal leukocytes in the presence of serum from an individual infected by the microorganism, to the number phagocytized in serum from a normal individual.phagocytic index any arbitrary measure of the ability of neutrophils to ingest native or opsonized particles determined by various assays; it reflects either the average number of particles ingested or the rate at which particles are cleared from the blood or culture medium.red blood cell indices (red cell indices) erythrocyte indices.refractive index the refractive power of a medium compared with that of air (assumed to be 1).short increment sensitivity index (SISI) a hearing test in which randomly spaced, 0.5-second tone bursts are superimposed at 1- to 5-decibel increments in intensity on a carrier tone having the same frequency and an intensity of 20 decibels above the speech recognition threshold.therapeutic index originally, the ratio of the maximum tolerated dose to the minimum curative dose; now defined as the ratio of the median lethal dose (LD₅₀) to the median effective dose (ED₅₀). It is used in assessing the safety of a drug.

in·dex

, gen.

in·di·cis

, pl.

in·di·ces

in·dex·es

(in'deks, -di-sis, -di-sēz, -dek-sĕz), Index of suspicion is jargon and says no more than simple suspicion.1.
See also: quotient, ratio. Synonym(s): index finger2. A guide, standard, indicator, symbol, or number denoting a relationship with respect to size, capacity, or function, of one part or thing to another.
See also: quotient, ratio. 3. A core or mold used to record or maintain the relative position of a tooth or teeth to one another and/or to a cast. 4. A guide, usually made of plaster, used to reposition teeth, casts, or parts. 5. In epidemiology, a rating scale. [L. one that points out, an informer, the forefinger, an index, fr. in-dico, pp. -atus, to declare]

index

1. A table of contents.2. A guiding principle.3. A formula expressing the relationship of one value, property, form, or ratio to another. See Ankle-brachial index, Atherogenic index, Barthel index, Bessman index, Biotechnology index, Bispectral index, Body mass index, Cardiac index, Case-mix index, Cephalic index, Clamp-derived insulin-sensitivity index, DNA index, Duke Activity Status index, England index, Family suffering index, Foam stability index, Free thyroxine index, Framingham Physical Activity index, Geographic practice cost index, Glycemic index, Greenhouse index, Heat index, Hemacytology index, Hemogram index, Hepatic iron index, HERP index, Hollingshead index, Icterus index, IgG index, IgM index, International sensitivity index, Insulin sensitivity index, Krimsky index, Labeling index, Lesquesne index, Life Events index, Locomotion index, Maturation index, Medicare Economic index, Mentzler index, Merck index, Misery index, Mitotic activity index, Mother index, National Death index, Nuclear contour index, Obstructive apnea-hypopnea index, Organism-specific antibody index, Pearl index, Phagocytic index, Pollution Standards index, Poverty index, Prognostic nutritional index, Proliferation index, Singh index, Psoriasis Area and Severity index, Quetelet index, Rate-adjusted mortality index, Shine & Lal index, Side Effects & Symptoms Distress index, Sleep Impairment index, Splenic index, Standard deviation index, Stress index, Therapeutic index, Thymidine labeling index, Transitional-dyspnea index, Uncitedness index, UV index.

in·dex

, gen. indicis, pl. indices, pl. indexes (indeks, -di-sis, -di-sēz, -deks-ĕz) [TA] 1. [TA]
Synonym(s): index finger. 2. A guide, standard, indicator, symbol, or number denoting the relation in respect to size, capacity, or function, of one part or thing to another.
See also: quotient, ratio3. A core or mold used to record or maintain the relative position of a tooth or teeth to one another or to a cast. 4. A guide, usually made of plaster, used to reposition teeth, casts, or parts. 5. epidemiology A rating scale.

index

(in'deks?) (in'di-sez?) plural.indexes, indices [L. index, pointer] 1. The forefinger. 2. The ratio of the measurement of a given substance to that of a fixed standard.

addiction severity index

A structured assessment tool that evaluates the impact of addictive behavior on seven areas of living: alcohol use, drug use, employment, family relationships, illegal activities, physical health, and psychological health.

alveolar index

Gnathic index.

ankle-brachial index

Abbreviation: ABI
A measure of the adequacy of blood flow to the arteries of the legs. It is used to gauge the severity of peripheral vascular disease.

Patient care

The index is obtained by measuring the systolic blood pressure in the upper and lower extremities after the patient has been lying on his or her back for about 5 min and then repeating the measurements after the patient walks for 5 min. There are several ways to obtain an ABI. The most accurate test results are obtained by measuring the blood pressure in both arms using a blood pressure cuff and Doppler ultrasound and recording the higher of these two pressures. The measurement is repeated in each leg, with measurement of blood pressures at both the posterior tibial and dorsalis pedis arteries. The pressure that should be recorded is the pressure found during the first return of a pulse to the cuffed limb. The blood pressure in each leg is divided by the blood pressure in the higher pressure of the two arms to obtain an ABI for each lower extremity. An ABI above 0.9 is normal, except when it exceeds 1.3 (an indicator of severe peripheral arterial obstruction). Severe obstruction is also indicated by an ABI of less than 0.5. Moderate peripheral arterial disease is suggested by an ABI of 0.8. A drop in the ABI after exercise also strongly suggests peripheral arterial disease. Patients with mild or moderately abnormal ABIs are usually treated with antiplatelet medications, an exercise regimen, and cholesterol-lowering drugs or diet. Those who smoke are encouraged to quit. Patients with severe disease may need angiography and, in some instances, arterial bypass surgery or stenting.

apnea-hypopnea index

Abbreviation: AHI
The number of times in an hour when a sleeping person either stops breathing completely or has limited airflow. Each episode must last at least 10 sec. The AHI is one indicator of obstructive sleep apnea, although it is recognized as an imperfect diagnostic tool. An AHI of 30 or more events in an hour indicates severe sleep apnea; 15 to 29 events suggests moderate apnea; and 5 to 14 events indicates mild apnea.

Barthel index

See: Barthel index

bispectral index

Abbreviation: BIS
An electroencephalographic measure of the effect of sedative and hypnotic drugs on an anesthetized patient. It is used (along with clinical assessment of the patient) to determine the level of central nervous system depression. The index ranges from zero (completely unresponsive to stimulation) to 100 (awake and alert). At levels below 60, most patients are adequately sedated for surgery.

BODY MASS INDEX

body mass index

Abbreviation: BMI
An index for estimating obesity. The BMI can be obtained by dividing weight in kilograms by height in meters squared, or according to the following formula: BMI = (Weight/2.205) / (Height/39.37)². In adults, a BMI greater than 30 kg/m² indicates obesity; a BMI greater than 40 kg/m² indicates morbid obesity; and a BMI less than 18.5 kg/m² indicates a person is underweight. The lowest overall death rate is found in people with a BMI of 20 to 24.9 kg/m². Synonym: Quetelet index See: illustration

burn scar index

A rating scale developed to assess hypertrophic burn scars and their rate of development or resolution. It is available at Burnsurgery.org. Synonym: Vancouver scar index; Vancouver scar scale

cardiac index

The cardiac output (expressed in liters per minute) divided by the body surface area (expressed in square meters).

cephalic index

The biparietal diameter of the skull divided by its occipitofrontal diameter, all multiplied by 100.

cerebral index

The ratio of greatest transverse diameter to the greatest anteroposterior diameter of the cranium.

chemotherapeutic index

The ratio of the toxicity of a drug, expressed as the maximum tolerated dose per kilogram of body weight to the minimal curative dose per kilogram of body weight. This index is used in judging the safety and effectiveness of drugs.

clinical risk index for babies

Abbreviation: CRIB
An index of the severity of illness, used to estimate the likelihood of mortality in very low birth weight infants who are cared for in a neonatal intensive care unit.

color index

An outmoded method of expressing the amount of hemoglobin present in each red cell.

Cumulative Index to Nursing and Allied Health Literature

See: Cumulative Index to Nursing and Allied Health Literature

dental index

A system of numbers for indicating comparative size of the teeth.

DMF index

The index of dental health and caries experience based on the number of decayed, missing, and filled (DMF) teeth or tooth surfaces.

dynamic gait index

Abbreviation: DGI
A semiquantitative tool used to evaluate a patient's ability to modify gait by changing task demands, esp. in patients with dizziness and balance deficits. This test is used to identify patients, esp. older adults, who are predisposed to falling. Patients are graded on their ability to vary speed, turn their heads, turn their bodies, step over and around obstacles, climb stairs, turn while walking, pick objects up from the floor, and perform alternate step-ups on a stool.

exposure index

A relative value indicating the quantity of ionizing radiation received by a digital radiographic image receptor. Although vendors currently use many kinds of exposure indices, e.g., Sensitivity Numbers, standardization is being developed by physicists' organizations.

fatigue index

The difference between the muscle power generated during peak exertion and the power that can be generated after repeated loading and unloading of the muscle.

Frenchay Activities Index

A formal interview for patients who have suffered a stroke to compare their functional abilities preceding and following the stroke. The patient describes how employment, meal preparation and clean up, gardening, shopping, and other activities of daily living have been altered by the stroke.

gas exchange index

One of several measurements of the efficiency of respiration, esp. of the extent of intrapulmonary shunting in respiratory failure. Among the commonly used gas exchange indices is the alveolar-arterial oxygen tension difference (a measurement derived from an analysis of the oxygen tension of an arterial blood gas compared with the atmospheric oxygen content).

glycemic index

A ratio used to describe the ability of a food to increase blood glucose levels as compared with consumption of either glucose or white bread as the standard. Foods with a low glycemic index result in a slower rise and lower maximum elevation of blood glucose levels than foods with a higher glycemic index. Consumption of low glycemic index foods can contribute to blood glucose regulation in patients with diabetes mellitus. Another use for the index is to identify the choice of food that will raise blood sugar levels after, e.g., endurance exercise.

gnathic index

A measure of the degree of projection of the upper jaw by finding the ratio of the distance from the nasion to the basion to that of the basion to the alveolar point and then multiplying by 100. Synonym: alveolar index

human development index

A measure of national quality of life used by the United Nations Development Program. It consists of three elements: life expectancy at birth, mean years and expected years of schooling, and the gross national income at purchasing power parity per capita.

Insall-Salvati index

See: Insall-Salvati index

International Sensitivity Index

Abbreviation: ISI
A laboratory standard for thromboplastins, the reagents used to determine the prothrombin time (PT). Because thromboplastin contents vary, PT results performed on the same sample of blood in different laboratories can be markedly different, even though the patient's actual level of anticoagulation is a constant. The ISI is used to calculate the international normalized ratio, a standardized measure of anticoagulation, thus enabling health care professionals working with different laboratories to compare results and adjust anticoagulant doses according to a single set of guidelines.

Karnofsky Index

See: Karnofsky Index

labeling index

The rate at which cells take up identifiable chemicals that they use in cell division. The index is a measure of the rate of the reproduction of the cells, as in fetal tissue development or the growth of cancers.

leukopenic index

A test formerly used to determine hypersensitivity to foods, in which the white blood cell count is checked 90 min after the consumption of a suspected allergen. A precipitous decrease in the white blood cell count within 90 min after ingestion of the test food was thought to indicate that the food was incompatible with that person.

life satisfaction index

Abbreviation: LSI
A self-reporting instrument to measure personal fulfillment or contentment, esp. with one's social relationships, occupation, maturation, or aging. A total of five rating scales are used.

McMurtryindex

See: McMurtry index

Index Medicus

A publication of the National Library of Medicine that lists biomedical and health sciences journal articles by title, subject, field, and country of publication. The major national and international medical and biological journals are indexed.

Mentzer Index

See: Mentzer index

mitotic index

The number of mitoses seen in a biopsy specimen per square millimeter of tissue examined. Mitoses in tissue are indicative of malignancy. The higher the mitotic index, the more rapidly a tumor is dividing and the worse the prognosis.

nasal index

The greatest width of the nasal aperture in relation to a line from the lower edge of the nasal aperture to the nasion.

notch width index

The width of the femoral intercondylar notch divided by the width of the femoral condyles.

opsonic index

A ratio of the number of bacteria that are ingested by leukocytes contained in the serum of a normal individual compared with the number ingested by leukocytes in the study patient's blood serum.

oral hygiene index

Abbreviation: OHI
A popular indicator developed in 1960 to determine oral hygiene status in epidemiological studies. The index consists of an oral debris score and a calculus score. Six indicator teeth are examined for soft deposits and calculus. Numerical values are assigned to the six indicator teeth according to the extraneous deposits present. The scores are added and divided by the number of surfaces examined to calculate the average oral hygiene score.

Oswestry Disability Index

Abbreviation: ODI
A questionnaire that requires a patient to rate the effect of back pain on 10 different activities, each having six levels of disability. The test was designed to assess patients with failed back surgery, but it is widely used for nonsurgical patients with other spinal conditions. Synonym: Oswestry disability score

oxygenation index

Abbreviation: OI
A measure of the efficiency of oxygen exchange by the lungs. The index is used in critical care medicine to assess the severity of acute lung injury and to gauge the effectiveness of ventilator management strategies. Mathematically it is represented as the product of the fractional concentration of inspired oxygen and the mean airway pressure, divided by the arterial oxygen concentration.

Pearl index

See: Pearl index

pelvic index

The ratio of pelvic conjugate and transverse diameters multiplied by 100.

periodontal (Ramfjord) index

An extensive consideration of the periodontal status of six teeth by evaluating gingival condition, depth of gingival sulcus or pocket, appearance of plaque or calculus, attrition, tooth motility, and extent of tooth contact.

phagocytic index

The average number of bacteria ingested by each leukocyte after incubation of the leukocytes in a mixture of serum and bacterial culture.

physiological cost index

Abbreviation: PCI
The metabolic expenditure per unit of distance traveled. It is expressed as the number of heartbeats per meter traveled and is calculated by subtracting the resting heart rate from the exercise heart rate divided by the distance traversed.

Pneumonia Severity Index

, pneumonia severity indexA diagnostic scoring system for predicting the level of care a patient with pneumonia will require. It includes demographic factors (such as the patient's age, whether he or she resides in a nursing home); findings on physical examination (such as altered mental status, fever, tachycardia, and low blood pressure); laboratory data (including serum pH, glucose and sodium levels); and the presence of other illnesses (such as heart, lung, brain, liver, or kidney disease). Synonym: pneumonia PORT score.

ponderal index

The ratio of an individual's height to the cube root of his or her weight; used to determine body mass. See: body mass index

proliferative index

Abbreviation: PI
The proportion of cells within a tumor specimen that are actively reproducing. In general, as the number of replicating cells in a tumor increases, the cancer behaves more aggressively and the prognosis for the patient worsens.

index of refraction

1. The ratio of the angle made by the incident ray with the perpendicular (angle of incidence) to that made by the emergent ray (angle of refraction). 2. The ratio of the speed of light in a vacuum to its speed in another medium. The refractive index of water is 1.33; that of the crystalline lens of the eye is 1.413. Synonym: refractive index

refractive index

Index of refraction.

rapid shallow breathing index

Abbreviation: f/TV; RSBI.
The ratio of the respiratory rate (f) and the tidal volume (TV) of a patient treated with mechanical ventilation while breathing on a T-piece (or at minimal levels of positive airway pressure or pressure support). Levels less than 105/min/L indicate that a patient may be able to be weaned successfully from the ventilator and breathe unassisted.

Reid index

See: Reid index

respiratory index

Abbreviation: RI
Alveolar/arterial gradient.

respiratory disturbance index

A measurement of the number of disordered breathing cycles during sleep. Sleep disordered breathing, which includes both apneas and hypopneas, results in daytime fatigue. It is also associated with an increased prevalence of cardiovascular disease.

sacral index

The sacral breadth multiplied by 100 and divided by the sacral length.

satiety index

The relative degree to which different foods of the same caloric value satisfy hunger.

saturation index

In hematology, the amount of hemoglobin present in a known volume of blood compared with the normal amount.

Science Citations Index

Abbreviation: SCI.
An electronic database of scientific journal articles published and referred to by other authors.

The Index is a proprietary product of the Thomson Corporation.

shock index

1. The systolic blood pressure divided by the heart rate.2. The heart rate divided by the systolic blood pressure.

sulcus bleeding index

Abbreviation: SBI.
A sensitive measure of gingival condition that involves probing of all sulci. The score is based on six defined criteria. It is calculated by counting the number of sulci with bleeding, dividing by the total number of sulci, and multiplying by 100.

sunscreen protective factor index

In preparations for protecting the skin from the sun (using sunscreens), the ratio of the amount of exposure needed to produce a minimal erythematous response with the sunscreen in place divided by the amount of exposure required to produce the same reaction without the sunscreen. This index assesses the ability of sunscreens to block (short-wavelength) ultraviolet B rays but does not measure the protective effect of sunscreens against (long-wavelength) ultraviolet A radiation. See: erythema dose

therapeutic index

The maximum tolerated dose of a drug divided by the minimum curative dose.

thoracic index

The ratio of the thoracic anteroposterior diameter to the transverse diameter.

Vancouver scar index

Burn scar index.

ventilation index

Abbreviation: VI.
1. A calculation used to determine the severity of respiratory illness (acute lung injury and/or respiratory distress syndrome) in critically ill patients. The VI is the partial pressure of arterial CO₂ multiplied by the peak airway pressure multiplied by the rate of ventilation, all divided by 1000.

Symbolically, the ventilation index is calculated as follows: VI = [RR x (PIP - PEEP) × PaCo₂]/1000.

2. In environmental science, a measure of air pollution based on the speed of the wind and the height of the column of air in which smoke or other pollutants mix.

vital index

The ratio of the number of births to the number of deaths in a population over a stated period of time.

Western Ontario McMaster Osteoarthritis Index

See: Western Ontario McMaster Osteoarthritis Index

in·dex

, pl. indices, pl. indexes (indeks, -di-sēz, -deks-ĕz) [TA] 1. A core or mold used to record or maintain the relative position of a tooth or teeth to one another and/or to a cast. 2. A guide, usually made of plaster, used to reposition teeth, casts, or parts.

Patient discussion about index

Q. how can i know my body mass index? how do they calculate it.thank you. this is bse i have a problem with my weight and the right diet to take.i wana have some tips on that bse its too much for me.new year.A. BMI is a simple method to have an estimation of your body weight. because just measuring weight is not enough because it differentiate between people due to their hight. a 5 footer does not have normal weight as a 6 footer...
here is a link to the WHO site that explains how to calculate it and what the results mean:
http://www.who.int/bmi/index.jsp?introPage=intro_3.html

More discussions about index

index

in·dex

index

in•dex

index

index

index

index

index

index

Index,

index,

Bibliography

Index

REFERENCES

index

index

index

index

index

index

in·dex

in·di·cis

in·di·ces

in·dex·es

index

in·dex

index

addiction severity index

alveolar index

ankle-brachial index

Patient care

apnea-hypopnea index

Barthel index

bispectral index

body mass index

burn scar index

cardiac index

cephalic index

cerebral index

chemotherapeutic index

clinical risk index for babies

color index

Cumulative Index to Nursing and Allied Health Literature

dental index

DMF index

dynamic gait index

exposure index

fatigue index

Frenchay Activities Index

gas exchange index

glycemic index

gnathic index

human development index

Insall-Salvati index

International Sensitivity Index

Karnofsky Index

labeling index

leukopenic index

life satisfaction index

McMurtryindex

Index Medicus

Mentzer Index

mitotic index

nasal index

notch width index

opsonic index

oral hygiene index

Oswestry Disability Index

oxygenation index

Pearl index

pelvic index

periodontal (Ramfjord) index

phagocytic index

physiological cost index

Pneumonia Severity Index

ponderal index

proliferative index

index of refraction

refractive index