What is the hallmark clinical manifestation of a serious *Echis* envenomation resulting from coagulation failure?
Answer
Systemic hemorrhaging (uncontrolled bleeding)
The systemic effect that causes the greatest mortality is the venom's impact on clotting factors, leading to systemic hemorrhaging, or uncontrolled bleeding.

Related Questions
To which genus do the snakes commonly called carpet vipers belong?What is the primary classification of the carpet viper's venom effects?Which species of carpet viper is specifically noted as a primary concern in West Africa?What distinctive defensive sound do carpet vipers produce by rubbing specialized scales together?What is the hallmark clinical manifestation of a serious *Echis* envenomation resulting from coagulation failure?Besides issues with blood clotting, what major organ damage is frequently linked to significant carpet viper envenomation?What term describes a defensive strike by an *Echis* viper that results in little or no venom injection?Which symptom typically manifests first locally at the site of an *Echis* bite?How is the danger level associated with carpet vipers characterized globally based on fatality statistics?What unusual risk factor related to handling deceased carpet vipers has been documented in case studies?