these parameters include venous lead concentration , plasma delta-aminolaevulinic acid dehydratase concentration ( ala-d ) , aminolaevulinic-acid ( ala ) excretion in urine , free erythrocytic protoporphyrin ( fepp ) and zinc protoporphyrin ( zpp ) concentrations in venous blood , and the percentage of fluorocytes , reticulocytes , and erythrocytes with basophilic stippling in peripheral blood .
C0035286
reticulocytes
C0229664
peripheral blood