Acute Radiation Syndrome (also known as Acute Radiation Syndromes, Radiation Syndrome, Acute): A condition caused by a brief whole body exposure to more than one sievert dose equivalent of radiation. Acute radiation syndrome is initially characterized by ANOREXIA; NAUSEA; VOMITING; but can progress to hematological, ga

NIH MeSH · D054508Diseases

Acute Radiation Syndrome

Also known asAcute Radiation Syndromes · Radiation Syndrome, Acute · Radiation Syndromes, Acute

Definition

A condition caused by a brief whole body exposure to more than one sievert dose equivalent of radiation. Acute radiation syndrome is initially characterized by ANOREXIA; NAUSEA; VOMITING; but can progress to hematological, gastrointestinal, neurological, pulmonary, and other major organ dysfunction.

MeSH classification

  • C26.733.188
  • G01.750.748.500.188
  • N06.850.460.350.850.500.158
  • N06.850.810.300.360.158

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Related concepts

Abnormalities, Radiation-Induced

Congenital changes in the morphology of organs produced by exposure to ionizing or non-ionizing radiation.

Common questions about Acute Radiation Syndrome

What does Acute Radiation Syndrome mean in medicine?
A condition caused by a brief whole body exposure to more than one sievert dose equivalent of radiation. Acute radiation syndrome is initially characterized by ANOREXIA; NAUSEA; VOMITING; but can progress to hematological, gastrointestinal, neurological, pulmonary, and other major organ dysfunction. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Acute Radiation Syndrome known by any other names?
Yes. Acute Radiation Syndrome is also referred to as Acute Radiation Syndromes, Radiation Syndrome, Acute, Radiation Syndromes, Acute in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Acute Radiation Syndrome sit in the medical classification?
Acute Radiation Syndrome falls under the broader medical category "Diseases" in the MeSH hierarchy (tree numbers: C26.733.188, G01.750.748.500.188, N06.850.460.350.850.500.158). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Acute Radiation Syndrome?
For a plain-language explanation of Acute Radiation Syndrome - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Acute Radiation Syndrome" above.

Source: NIH MeSH 2026 (D054508) — National Library of Medicine, public domain. View official MeSH record ↗