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Median lethal dose

In toxicology, the median lethal dose, LD50 (abbreviation for "lethal dose, 50%"), LC50 (lethal concentration, 50%) or LCt50 is a toxic unit that measures the lethal dose of a given substance. The value of LD50 for a substance is the dose required to kill half the members of a tested population after a specified test duration. LD50 figures are frequently…

Measurement, Conventions & Other measures of toxicity

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Median lethal dose

Nodes65
Edges64
Triples5
Avg. degree1.97
Density0.030769
Components1

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ld50 dose test used substance toxicity toxic may lethal value administration animal measures also substances dosage concentration per exposure many

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SubjectPredicateObjectConfidenceSrc
laboratory miceinstance ofLD50 is usually determined by tests on animals0.80text
the genetic characteristics of the sample populationinstance ofLD50 is somewhat unreliable and results may vary greatly between testing facilities due to factors0.80text
animal species testedinstance ofLD50 is somewhat unreliable and results may vary greatly between testing facilities due to factors0.80text
environmental factorsinstance ofLD50 is somewhat unreliable and results may vary greatly between testing facilities due to factors0.80text
mode of administration.There can be wide variability between species as wellinstance ofLD50 is somewhat unreliable and results may vary greatly between testing facilities due to factors0.80text

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