USA HISTORY

Detailed explanation-1: -Radiation sickness is damage to your body caused by a large dose of radiation often received over a short period of time (acute). The amount of radiation absorbed by the body-the absorbed dose-determines how sick you’ll be. Radiation sickness is also called acute radiation syndrome or radiation poisoning.

Detailed explanation-2: -Acute Radiation Syndrome (ARS) (sometimes known as radiation toxicity or radiation sickness) is an acute illness caused by irradiation of the entire body (or most of the body) by a high dose of penetrating radiation in a very short period of time (usually a matter of minutes).

Detailed explanation-3: -At high doses, ionizing radiation can cause immediate damage to a person’s body, including, at very high doses, radiation sickness and death. At lower doses, ionizing radiation can cause health effects such as cardiovascular disease and cataracts, as well as cancer.

Detailed explanation-4: -Patients with acute radiation syndrome (ARS) classically go through four clinical phases: prodrome, latency, manifest illness, and either recovery or death.

Detailed explanation-5: -Exposure from x-rays or gamma rays is measured in units of roentgens. For example: Total body exposure of 100 roentgens/rad or 1 Gray unit (Gy) causes radiation sickness. Total body exposure of 400 roentgens/rad (or 4 Gy) causes radiation sickness and death in half of the individuals who are exposed.