A 32-year-old man presents to the emergency department with acute chest pain, severe agitation, and mydriasis after cocaine use. Vital signs show BP 185/110 mmHg, HR 128/min, RR 22/min, and temperature 38.2°C. Troponin is elevated at 0.8 ng/mL; ECG demonstrates ST-segment elevation. He denies prior cardiac history or current beta-blocker use. Which medication should be avoided as monotherapy due to unopposed alpha-adrenergic stimulation?
- A)Nitroglycerin
- B)Benzodiazepines
- C)Pure beta blockerGABARITO
- D)Aspirin
- E)Phentolamine
Explicação
In acute cocaine intoxication, a pure beta blocker can worsen vasoconstriction by leaving alpha adrenergic effects unopposed. Benzodiazepines, nitrates, and alpha blockade are preferred management strategies depending on the clinical context. Ver explicação completa e trilha adaptativa →