Serum acetaminophen assay should be obtained as soon as possible, but no sooner than hours following ingestion. Letter from Wagner to federal Government Accountability Office director obtained Monday by The Associated Press followed up on meeting last month in which Wagner aides had discussed their concerns. Accuracy, Precision, and Recovery The accuracy of an analytical method describes the closeness of mean test results obtained by the method to the true value concentration of the analyte. The resident, Robert Leroy Cox, was lodged in the Linn County Jail on multiple charges of possession and delivery of controlled online apotheek endocet substances and frequenting place with controlled substances. Poplawski is accused of lying in wait and killing three officers summoned by his mother during an argument this month. Study organizers say that until now there have been no national data to help study perceived trends.