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THRESHOLD RISK [7 records]

Record 1 2012-05-16

English

Subject field(s)
  • Radiation Protection
  • Radiography (Medicine)
CONT

There are basically two different opinions about the shape of the dose-effect at low doses. There are those who believe that very low doses of radiation carry no risk and that a threshold dose has to be exceeded before an effect will be induced. Others support the concept of radiation risk increasing linearly with dose from zero dose up, i. e. the linear no-threshold(LNT) concept.

PHR

Linear no-threshold model, response, theory.

Key term(s)
  • linear no threshold

French

Domaine(s)
  • Radioprotection
  • Radiographie (Médecine)
CONT

L'une des conséquences de l'hypothèse d'une relation linéaire sans seuil entre la dose et le risque pour la santé est que, dans une grande population, où tous les individus ont reçu de faibles doses de rayonnement, il est possible d'estimer statistiquement le nombre prévu des effets sans seuils qui pourraient être attribués à l'exposition, même si, à des doses très faibles, ces effets ne peuvent être distingués des incidences de cancer naturel.

PHR

Modèle, relation, théorie linéaire sans seuil.

Spanish

Save record 1

Record 2 2011-11-24

English

Subject field(s)
  • Diagnostic Procedures (Medicine)
CONT

The Norton Scale, developed in the 1950s to assess pressure ulcer risk, should have its onset threshold moved from 14 to 15 or 16. Close monitoring of patients’ health and pressure ulcer risk factors remain key elements in accurate use of this scale. Regardless of which of the several pressure ulcer assessment scales is used, health care providers must realize scales indicate but do not predict. [...] The Braden Scale's validity for predicting patients at risk for pressure ulcers is affected by patient nutrition, patient history, and treatment regimen.

French

Domaine(s)
  • Méthodes diagnostiques (Médecine)
DEF

[Échelle pour] l'évaluation des facteurs de risque d'escarre.

Spanish

Campo(s) temático(s)
  • Procedimientos diagnósticos (Medicina)
DEF

Escala de valoración del riesgo de padecer úlceras por presión.

CONT

Las escalas de Braden y Norton son superiores al juicio clínico de las enfermeras para predecir el riesgo de un paciente de desarrollar UPP [úlceras por presión]. El análisis ponderado y el metaanálisis de los estudios de validación ofrecen adecuada evidencia para recomendar la escala de Braden, como la que ofrece el mejor balance sensibilidad/especificidad, y la mayor capacidad de predicción de los pacientes que pueden desarrollar UPP.

Save record 2

Record 3 2011-11-24

English

Subject field(s)
  • Diagnostic Procedures (Medicine)
DEF

A scale for predicting pressure sore risk.

CONT

The Norton Scale, developed in the 1950s to assess pressure ulcer risk, should have its onset threshold moved from 14 to 15 or 16. Close monitoring of patients’ health and pressure ulcer risk factors remain key elements in accurate use of this scale. Regardless of which of the several pressure ulcer assessment scales is used, health care providers must realize scales indicate but do not predict.... The Braden Scale's validity for predicting patients at risk for pressure ulcers is affected by patient nutrition, patient history, and treatment regimen.

French

Domaine(s)
  • Méthodes diagnostiques (Médecine)

Spanish

Campo(s) temático(s)
  • Procedimientos diagnósticos (Medicina)
DEF

[Escala que] evalúa el riesgo de desarrollar úlceras por presión en base a la sensibilidad y humedad de la piel, la fricción del cuerpo con las sábanas, la movilidad, actividad y nutrición del paciente.

CONT

Las escalas de Braden y Norton son superiores al juicio clínico de las enfermeras para predecir el riesgo de un paciente de desarrollar UPP [úlceras por presión]. El análisis ponderado y el metaanálisis de los estudios de validación ofrecen adecuada evidencia para recomendar la escala de Braden, como la que ofrece el mejor balance sensibilidad/especificidad, y la mayor capacidad de predicción de los pacientes que pueden desarrollar UPP.

Save record 3

Record 4 2007-10-25

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
CONT

The risk threshold for groups of minors is lower than for adults. [Example approved by the Avalanche Bulletin Terminology Standardization Committee. ]

OBS

risk threshold : term officially approved by the Avalanche Bulletin Terminology Standardization Committee.

Key term(s)
  • threshold of risk

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

Le seuil de risque acceptable pour les groupes de jeunes mineurs est plus bas que pour les adultes. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.]

OBS

seuil de risque acceptable : terme uniformisé par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.

Spanish

Save record 4

Record 5 2004-02-23

English

Subject field(s)
  • Cancers and Oncology
  • Phraseology
DEF

A substance that has not been proven to cause cancer but is believed to do so.

CONT

[Module II-B : hazardous chemicals in the workplace. What this module will teach employees include :] Special chronic effects :... b. cancer : known and suspected carcinogens, latency, risk and threshold.

CONT

A proven or suspected carcinogen - shown to cause cancer in humans or test animals ...

French

Domaine(s)
  • Cancers et oncologie
  • Phraséologie
OBS

Le terme «cancérigène» est à éviter. Il est déconseillé par l'Académie des sciences (de France).

OBS

Propositions sur le modèle de «allergène présumé» (source : DOMEA 1981 p. 49).

Spanish

Campo(s) temático(s)
  • Tipos de cáncer y oncología
  • Fraseología
DEF

Sustancia de la que se sospecha que provoque cáncer sin que haya sido probado aún.

Save record 5

Record 6 1996-05-13

English

Subject field(s)
  • Radiation Protection
  • Nuclear Waste Materials
CONT

Biological effects of ionizing radiation.... at the upper end of the scale, there is no radiation exposure so high it will guarantee that every exposed individual will suffer the effect. Nor at the lower end is any exposure so low that it will carry no risk to anyone of inducing the effect. These radiation effects are therefore said to have "no threshold. "Logically, it follows that any exposure to radiation, no matter how small, carries some risk and that any reduction in exposure, even from an already very low level, confers some benefit. However, it is not always appreciated that the absence of a "safe" threshold is a theoretical assumption and a safety precaution rather than something that can be proven. It is also not well understood that the toxic effects of radiation, for which there is no defined safe level, may not differ fundamentally from those of some chemical toxins for which a "safe" level in the body or in the environment has been declared.

CONT

Complicating the problem of public perceptions of the level of risk associated with radioactive wastes is the confusion induced by two fundamental principles of radio-biological and radiation protection theory. The first is the "no-threshold" hypothesis, and the second is the "as low as reasonably achievable, "or ALARA, principle. The first principle holds that there is no threshold below which exposure to radiation is entirely safe. The "no threshold" hypothesis-that any exposure to ionizing radiation, no matter how small, will increase the probability of a harmful consequence to an exposed individual-is an important scientific concept.... it is generally agreed that it is wise to err on the side of safety and work from the assumption that there is no safe level.

French

Domaine(s)
  • Radioprotection
  • Déchets nucléaires
OBS

Voir aussi le terme anglais «threshold limit value».

Spanish

Campo(s) temático(s)
  • Protección contra la radiación
  • Desechos nucleares
Save record 6

Record 7 1996-01-19

English

Subject field(s)
  • Phraseology
  • Toxicology
  • Cytology
CONT

Non-petroleum-based varsol is safer to use because it does not contain any known carcinogens or ozone-depleting chemicals.

CONT

[Module II-B : Hazardous chemicals in the workplace. What this module will teach employees include :] Special chronic effects :... b. cancer : known and suspected carcinogens, latency, risk and threshold.

French

Domaine(s)
  • Phraséologie
  • Toxicologie
  • Cytologie
OBS

Le terme "cancérigène" est à éviter. Il est déconseillé par l'Académie des sciences (de France).

Spanish

Save record 7

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