Public Health Emergency Preparedness
This resource was part of AHRQ's Public Health Emergency Preparedness program, which was discontinued on June 30, 2011, in a realignment of Federal efforts.
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Figure 6.5. Pattern of a Series of Blood Counts Graphed Over Time After 3 Gy of Whole-Body Exposure
Note: Typical changes in the peripheral blood profile will occur as early as 24 hours after irradiation, with lymphocytes falling immediately on day 1. At about 4 weeks, cell lines bottom out. Without white cells, overwhelming infection occurs, and without platelets, hemorrhage is expected.
Source: Armed Forces Radiobiology Research Institute.
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