A patient with hand trauma following a gunshot wound currently has bier block anesthesia with lidocaine. What assessment finding should signal the nurse to the possibility that the patient has local anesthetic systemic toxicity (LAST)?
A) The patient has become intensely anxious and agitated.
B) The patient has complained of nausea and had an episode of blood-tinged emesis.
C) The patient's heart rate has become bradycardic and irregular.
D) The patient states that he still has sensation in his hand.
A
Feedback:
Initial symptoms of LAST may include analgesia, circumoral numbness, metallic taste, tinnitus or auditory changes, and agitation. Nausea, dysrhythmias, and continued sensory nerve function do not suggest LAST.
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