Threshold radiation dose for haematological syndrome – Radiology MCQ

Threshold radiation dose for haematological syndrome is?
A. 1 Gy
B. 5 Gy
C. 20 Gy
D. 100 Gy

Correct answer : A. 1 Gy
Threshold radiation dose for acute radiation syndromes:

Haematologic / haematopoietic syndrome – 1 Gy
Gastrointestinal syndrome – 5 Gy
Central nervous system syndrome – 20 Gy