RT Book, Section A1 Smollin, Craig A1 Olson, Kent R. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. SR Print(0) ID 1175794945 T1 Diagnosis of Poisoning T2 Current Medical Diagnosis & Treatment 2021 YR 2021 FD 2021 PB McGraw-Hill Education PP New York, NY SN 9781260469868 LK accessmedicine.mhmedical.com/content.aspx?aid=1175794945 RD 2023/02/04 AB The identity of the ingested substance or substances is usually known, but occasionally a comatose patient is found with an unlabeled container or the patient is unable or unwilling to give a coherent history. By performing a directed physical examination and ordering common clinical laboratory tests, the clinician can often make a tentative diagnosis that may allow empiric interventions or may suggest specific toxicologic tests.