LABORATORY REFERENCE RANGE VALUES （实验室参考值范围值）.pdfVIP

APP17 lab reference range values.qxd 8/13/05 1:45 PM Page APP 96 LABORATORY REFERENCE RANGE VALUES Show-Hong Duh, PhD, DABCC, Department of Pathology, University of Maryland School of Medicine Janine Denis Cook, PhD, Department of Medical and Research Technology, University of Maryland School of Medicine Reference range values are for apparently healthy people and often overlap significantly with values for those who are sick. Actual values may vary significantly due to differences in assay methodologies and standardization. Institutions may also set up their own reference ranges based on the particular populations that they serve, thus regional differences may occur. Consequently, values report- ed by individual laboratories may differ from those listed in this appendix. All values are given in conventional and SI units. However, cases where SI units have not been widely accepted, conventional units are used. In case of the heterogenous nature of the materials measured or uncertainty about the exact molecular weight of the com- pounds, SI measurements cannot be used so that mass per volume remains as the unit of concentration. Abbreviations: ACD, AMP, CEA, CHF, Cit, ACD, acid-citrate-dextrose; AMP, adenosine monophosphate; CEA, carcinoembryonic antigen; CHF, congestive heart failure; Cit, Cl, CNS, CSF, cyclic AMP,