Clinicohematological investigations and cytogenetic analysis of blood
lymphocytes were made 5-7 years after the Chernobyl accident in 201 li
quidators who had worked in the radionuclide-contaminated zone. Among
the somatic diseases found in the examinees statistically more prevale
nt were cardiovascular and gastrointestinal affections, asthenic syndr
ome, thyroid disorders. Hemograms presented a rise in hemoglobin, red
cell and eosinophil content, a drop in the number of neutrophils. A te
ndency to erythrocytosis was observed in 20.3% of the wreckers. Dicent
ers and rings were abundant in the lymphocytes of 69% of the cylogenet
ically examined examinees 5-7 years after the exposure to radiation.