Early Effects
These biologic responses occur shortly after exposure to a high radiation dose.
What are early effects?
ARS is also known as this.
What is radiation sickness?
LD 50/30 means this.
What is the dose expected to kill 50% of an exposed population within 30 days?
A whole-body dose of 0.25 Gy may cause this measurable effect.
What is hematologic depression?
The nuclear disaster that occurred April 26, 1986.
What is the Chernobyl disaster?
Early tissue reactions are uncommon in this area of medical practice.
What is diagnostic imaging?
ARS occurs after this type of exposure.
What is whole-body exposure to a large dose delivered over a short time?
Estimated LD 50/30 for adults.
What is 3–4 Gy?
This organ system includes bone marrow, spleen, thymus, and lymph nodes.
What is the hematopoietic system?
The Japanese cities exposed to atomic bomb radiation in 1945.
What are Hiroshima and Nagasaki?
These two classifications describe somatic effects based on timing.
What are early somatic effects and late somatic effects?
The first stage of ARS characterized by nausea and vomiting.
What is the prodromal stage?
Dose range for hematopoietic syndrome.
What is 1–10 Gy?
Approximately this percentage of radiation damage may be repaired by cells.
What is about 90%?
Residents exposed to fallout in 1954 lived in this island chain.
What are the Marshall Islands?
A whole-body dose of this amount (in Gy) may cause Acute Radiation Syndrome.
What is about 6 Gy?
The stage of ARS known as the “false calm.”
What is the latent stage?
Threshold dose for gastrointestinal syndrome.
What is about 6 Gy?
This condition describes moist or dry skin peeling after radiation exposure.
What is desquamation?
This method was used at Chernobyl to estimate radiation dose when monitoring devices were unavailable.
What is biologic dosimetry?
This term describes biologic damage experienced by the exposed individual.
What are somatic effects?
The three dose-dependent ARS syndromes.
What are hematopoietic, gastrointestinal, and cerebrovascular syndromes?
Dose associated with cerebrovascular syndrome.
What is 50 Gy or more?
0.1 Gy may cause this effect in males.
What is reduced sperm count?
This early radiation safety advocate experienced radiation burns in 1898.
Who was William Herbert Rollins?