Lethal dose fifty

The inherent toxicity of a material is measured by tests on animals. It is usually expressed as the lethal dose at which 50 per cent of the test animals are killed, the LD50 (lethal dose fifty) value. The dose is expressed as the quantity in milligrams of the toxic substance per kilogram of body weight of the test animal. 

LDso/Lethal Dose Fifty—A calculated dose expected to cause the death of 50% of a tested population from exposure by any route other than inhalation. 

LD50 lethal dose fifty all (e.g., oral, dermal), except inhalation... 

LC50. 96 h lethal concentration fifty, after 96-hour exposure LD50 lethal dose fifty LOAEL lowest observable adverse effect level NOAEL no observable adverse effect level, EPA. Environ... 

ED 50 or lethal dose fifty is a term used to describe the acute toxicity of a chemical and is usually expressed in milligrams (mg) of chemical given per kilogram (kg) of the animal. By expressing doses in units like mg/kg it makes it easier to compare variations in dosages between species. LD50 is the single dose that is lethal to 50% of the experimental animals dosed. In practice, this is an extrapolated... 

In order to appreciate the toxidty of some measured V-agaits there are shown the lethal doses fifty intra-musculary for mouses and rats in the Table 2. Toxicological data were measured at the Military Medical Academy of Hradec Kralove. 

Meas u ri ng Toxicity Describes a lethal dose fifty and how it is determined, how a dose-response... 

Preview You will learn about how the lethal dose fifty is determined, how dose-response relationships are determined, how poisons are defined, and how toxicity thresholds are determined. 

LD50 The lethal dose (LD) of a toxicant when taken orally or absorbed through the skin, which is lethal to fifty percent of the exposed lab animal population. 

LDjo lethal dose for fifty percent of animals... 

I was struck silent by this hideous question. The Colonel waited. I realized that he was not going to gas Los Angeles, and he needed the information to plan our defense. I finally asked, What is the LD50 of phosgene LD50 is shorthand for lethal dose to kill fifty percent of the exposed population. 

Fifty adult male Swiss albino rats of mean weight 100 10 g were used for the determination of the median lethal dose (LD50) (Reed and Meuench, 1938). Results are shown in Table (1). 

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