A patient receives a local anaesthetic before wound suturing. Which early finding suggests systemic local anaesthetic toxicity?
Correct answer: A. Tingling around the mouth and ringing in the ears
- A. Tingling around the mouth and ringing in the ears
- B. Mild warmth at the injection site
- C. Reduced sensation around the wound
- D. Temporary inability to feel pain
Explanation
Perioral tingling and tinnitus are early neurological signs of systemic local anaesthetic toxicity and should be reported promptly. Numbness and loss of pain at the wound are expected therapeutic effects, while mild local warmth is not the characteristic warning sign.
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About Analgesics and CNS Drugs
This area covers opioid and non-opioid analgesics, local anaesthetics, sedatives, anxiolytics, antidepressants, antipsychotics, antiepileptics and drugs for Parkinsonism. It examines therapeutic actions, dependence, respiratory depression, extrapyramidal effects, serotonin related toxicity and the distinction between pain relief, sedation and loss of consciousness.
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