Final answer:
The laboratory findings of a platelet count of 90,000, an elevated AST level, and a falling hematocrit in a pregnant woman with preeclampsia are indicative of HELL syndrome.
Step-by-step explanation:
The laboratory findings of a platelet count of 90,000, an elevated aspartate transaminase (AST) level, and a falling hematocrit in a pregnant woman with preeclampsia are indicative of HELLP syndrome. HELLPh stands for Hemolysis, Elevated Liver enzymes, and Low Platelet count, which are the characteristics of this syndrome. It is a serious condition that can lead to complications for both the mother and the baby.