JCTLM

AcronymDefinition
JCTLMJoint Committee for Traceability in Laboratory Medicine
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The JCTLM maintains a searchable database of certified reference materials, accepted reference methods, and standardization organizations, available at this address: http://www.
1] Nonstandard abbreviations: RMP, reference measurement procedure; IS, internal standard; JCTLM, Joint Committee for Traceability in Laboratory Medicine.
4] Nonstandard abbreviations: RMP, reference measurement procedure; NMI, National Measurement Institute; SI, International System of Units; ISO, International Organization for Standardization; JCTLM, Joint Committee for Traceability in Laboratory Medicine; LC-MS/MS, liquid chromatography-tandem mass spectrometry; IS, internal standard; PSS, primary stock solution; WS, working calibrator solution; LLE, liquid/liquid extraction; ESI, electrospray ionization; SRM, selected reaction monitoring; QI/CI, ratio of quantification ions to confirmation ions; ME, matrix effect; SHBG, sex hormone-binding globulin.
1c], glycosylated hemoglobin; JCTLM, Joint Committee for Traceability in Laboratory Medicine; eGFR, estimated glomerular filtration rate; IFU, instructions for use.
13] Nonstandard abbreviations: RMP, reference measurement procedure; HCG, human chorionic gonadotropin; SI, International System of Units (Systeme International d'Unites); CLMP, clinical laboratory measurement procedure; ISO, International Organization for Standardization; JCTLM, Joint Committee for Traceability in Laboratory Medicine; IVD, in vitro diagnostics; STARD, Standards for Reporting of Diagnostic Accuracy; TEa, total allowable error; CVi, within-subject biological variation, PT, proficiency testing; EQA, external quality assessment.
We conclude that notwithstanding the appearance of European In Vitro Diagnostic Directive 98/79/EC in 1998 and the foundation of the JCTLM in 2002, standardization has not been achieved.
1] Nonstandard abbreviations: SKML, Stichting Kwaliteitsbewaking Medische Laboratoria; JCTLM, Joint Committee for Traceability in Laboratory Medicine.
10] Nonstandard abbreviations: ID-LC, isotope dilution-liquid chromatography; MS/MS, tandem mass spectrometry; GC, gas chromatography; RMP, reference measurement procedure; JCTLM, Joint Committee for Traceability in Laboratory Medicine; LOQ, limit of quantification.
3] Nonstandard abbreviations: CKD, chronic kidney disease; NKDEP, Laboratory working Group of the National Kidney Disease Education Program; GFR, glomerular filtration rate; SRM, standard reference material; JCTLM, Joint Committee on Traceability in Laboratory Medicine.
NIST plans to submit this new reference material to JCTLM for inclusion in the approved list.
Three GC-IDMS methods, nominated by the University of Ghent (Belgium), the German Society of Clinical Chemistry and Laboratory Medicine (DGKC), and NIST, have been approved by the JCTLM as reference measurement procedures for serum creatinine (118-120).
FOR NATIONAL METROLOGY INSTITUTES, REFERENCE LABORATORIES, AND ORGANIZATIONAL MEMBERS OF JCTLM