Which of the following is classified as an advanced symptom of pesticide poisoning?

The classification of symptoms in pesticide poisoning is crucial for understanding the severity of the condition. Coma is considered an advanced symptom of pesticide poisoning because it indicates a significant level of disruption to the central nervous system and is associated with severe toxicity. When an individual is in a coma, they are unresponsive and unable to be awakened, which reflects critical impairment of brain function and can be life-threatening.

In contrast, other symptoms like excessive salivation, headache, and numbness are often seen in milder to moderate cases of poisoning. Although they are important signs and can indicate the early stages of pesticide exposure, they do not convey the same level of severity and urgency as coma does. Recognizing coma as an advanced symptom helps healthcare professionals prioritize immediate medical intervention and treatment for affected individuals.