The amount of published information regarding the exposure-totreatment interval (ETI) and the severity of canine poisoning cases is limited. The ETI is a critical factor in the effectiveness and risk:benefit ratio of decontamination of the upper digestive tract by induction of emesis, gastric lavage and single-dose activated charcoal (Krenzelok et al.Chyka et al., 2005). The efficiency and risk:benefit ratio of upper gastrointestinal (UGI) decontamination following poisoning declines rapidly as the ETI increases, particularly when this interval exceeds 1-2 h (Krenzelok et al.
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