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Campbell CA, Georgiou A, Westbrook JI, Horvath AR. What alert thresholds should be used to identify critical risk results: a systematic review of the evidence. Clin Chem. 2016;62(11):1445–1457. Published correction appears in Clin Chem. 2017;63(9):1541–1543.

Genzen JR, Tormey CA; Education Committee of the Academy of Clinical Laboratory Physicians and Scientists. Pathology consultation on reporting of critical values. Am J Clin Pathol. 2011;135(4):505–513.

Lusky K. Critical values—looking closely at calls, cutoffs. CAP TODAY. 2008;22(11):80.

Standard: Procedural Manual. 42 CFR §493.1251(b)(11). https://bit.ly/33UceRT.

Standard: Test Report. 42 CFR §493.1291(g). https://bit.ly/33UceRT.

David Nathaniel Alter, MD
Director of Clinical Chemistry
Associate Professor
Department of Pathology
and Laboratory Medicine
Emory University School of Medicine
Emory University Hospital, Atlanta
Chair, CAP Clinical Chemistry Committee