Review the trend after a peripheral nerve block and determine the complication and priority response.
Trend
Choose your responses, then check the answer.
Explanation
The progression from circumoral numbness and tinnitus to seizure, hypotension, and ventricular dysrhythmia is local anesthetic systemic toxicity requiring airway support and early 20% lipid emulsion treatment.
Quick answer Recognize LAST and activate the lipid-rescue pathway.
Why this is correct Neurologic symptoms can precede cardiovascular collapse after systemic local-anesthetic exposure. The ASRA checklist prioritizes help, airway and seizure management, and early 20% lipid emulsion with LAST-specific resuscitation precautions.
Easy analogy or mental picture A warning buzz becomes an electrical storm; reach for the LAST rescue kit before collapse deepens.
Memory hook Numb mouth, tinnitus, seizure, arrhythmia: think LAST and lipid.
NCLEX decision rule Trend neurologic and cardiovascular cues as one evolving toxic syndrome.
Why the other choices are wrong Standard large epinephrine doses, vasopressin, beta blockers, calcium-channel blockers, and more local anesthetic are specifically unsafe choices in the checklist.
References
1ASRA LAST ChecklistEarly 20% lipid emulsion, altered resuscitation, monitoring, and avoidance list
LAST rescueStop local anesthetic, call for help, support airway, treat seizure appropriately, and start the prescribed 20% lipid-emulsion protocol.