Question 513 · LDEK · Anesthesia and pharmacology in conservative dentistry
Choose correct statements regarding the local anaesthetic systemic toxicity (LAST):
1) clinical manifestation of cascade symptoms starts with agitation;
2) clinical manifestation of cascade symptoms starts with reduced level of consciousness;
3) clinical manifestation of cascade symptoms starts with syncope;
4) mild reaction may include: talkativeness, sense of lightness, dizziness, tinnitus;
5) intense reaction may include: seizure, hypotension, apnoea, loss of consciousness.
The correct answer is:
2) clinical manifestation of cascade symptoms starts with reduced level of consciousness;
3) clinical manifestation of cascade symptoms starts with syncope;
4) mild reaction may include: talkativeness, sense of lightness, dizziness, tinnitus;
5) intense reaction may include: seizure, hypotension, apnoea, loss of consciousness.
The correct answer is:
- A. only 3.
- B. 1,5.
- C. 3,4.
- D. 2,4,5.
- E. 1,4,5.
Hint
Local anesthetics first block inhibitory CNS pathways — consider what that does to the patient's early behavior.
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