What laboratory testing can help differentiate a non‐envenomed from an envenomed snakebite?. Issue 3 (March 2016)

• Record Type: Journal Article
• Authors: Miller, Barbara; Weakley, Jennifer; Sidhpura, Monali
• Is Part Of: Evidence-based practice. Volume 19:Issue 3(2016)
• Publication Date: 2016-03
• DOI: 10.1097/01.EBP.0000541169.77581.3a
• Languages: English
• ISSNs: 1095-4120

Abstract

Abstract : Evidence‐Based Answer : The international normalized ratio (INR), activated partial thromboplastin time (aPTT), and creatine kinase (CK) combined with a neurological examination will detect severe envenoming by 12 hours (SOR: B, prospective cohort in Australia). Normal laboratory coagulation testing at 6 hours excludes elapid envenoming in asymptomatic patients (SOR: B, case series in Australia). Bedside coagulation testing (the WBCT20) has low sensitivity (SOR: B, retrospective cohort in Sri Lanka). Limiting coagulation studies to only patients with severe clinical presentations will miss most crotalid bite coagulopathies (SOR: B, case series in the United States).