What laboratory finding is NOT associated with HELLP syndrome in a pregnant woman after the 20th week of gestation?

In the context of HELLP syndrome, which is a severe form of preeclampsia characterized by hemolysis, elevated liver enzymes, and low platelets, identifying the laboratory findings is crucial. The correct answer, indicating thrombocytosis, is important because HELLP syndrome is specifically associated with thrombocytopenia, or low platelet counts.

In contrast, elevated ALT/AST is commonly found due to liver involvement, proteinuria indicates kidney involvement, and anemia can arise from hemolysis, all of which are relevant to the pathophysiology of HELLP syndrome. Thrombocytosis would suggest an increased platelet count, which is not a feature of HELLP syndrome and directly contradicts the coagulation issues present with this condition. Thus, recognizing thrombocytosis highlights its absence in HELLP syndrome's diagnostic criteria.