Which ARS stage is characterized by the onset of non-specific symptoms such as nausea and vomiting after exposure?

Which ARS stage is characterized by the onset of non-specific symptoms such as nausea and vomiting after exposure?

• A. Latent.
• B. Manifest.
• C. Prodromal.
• D. Recovery.

Answer: (C)

Prodromal ARS is the early phase that appears soon after radiation exposure and is marked by non-specific symptoms such as nausea, vomiting, fatigue, and loss of appetite. These initial signs reflect the body's immediate response to radiation affecting rapidly dividing cells, especially in the gastrointestinal tract and bone marrow, before more specific organ damage develops. The latent stage follows, a brief period with no symptoms, then the manifest stage brings pronounced, organ-specific symptoms depending on the dose. Recovery occurs as the acute illness resolves. So, the onset of nausea and vomiting after exposure is characteristic of the prodromal stage.

Prodromal ARS is the early phase that appears soon after radiation exposure and is marked by non-specific symptoms such as nausea, vomiting, fatigue, and loss of appetite. These initial signs reflect the body's immediate response to radiation affecting rapidly dividing cells, especially in the gastrointestinal tract and bone marrow, before more specific organ damage develops. The latent stage follows, a brief period with no symptoms, then the manifest stage brings pronounced, organ-specific symptoms depending on the dose. Recovery occurs as the acute illness resolves. So, the onset of nausea and vomiting after exposure is characteristic of the prodromal stage.