Final answer:
The signs and symptoms of LA CNS toxicity include miosis, blurred/dim vision, headache, nausea, vomiting, diarrhea, copious secretions/sweating, muscle twitching/fasciculations, dyspnea, seizures, and unconsciousness.
Step-by-step explanation:
The signs and symptoms of LA CNS toxicity include:
- Miosis (pinpoint pupils)
- Blurred/dim vision
- Headache
- Nausea, vomiting, diarrhea
- Copious secretions/sweating
- Muscle twitching/fasciculations
- Dyspnea
- Seizures
- Unconscious
These symptoms typically occur when exposed to a local anesthetic (LA) that causes toxicity in the central nervous system (CNS).