A 26-year-old woman presents with episodic palpitations, tremor, and diaphoresis before musical auditions. Vital signs show HR 108 bpm, BP 138/82 mmHg, RR 16, temp 37°C, and SpO2 98%. She denies dyspnea or chest pain. TSH is normal. Her physician prescribes a beta-blocker to blunt peripheral autonomic symptoms without causing CNS sedation. The medication should allow adequate cardiac output for performance while reducing tremor and tachycardia. Which beta-blocker was most likely chosen for this indication?
- A)Prazosin
- B)Pilocarpine
- C)Clonidine
- D)Phenoxybenzamine
- E)PropranololGABARITO
Explicação
Propranolol is a nonselective beta blocker commonly used for performance anxiety because it reduces tremor, palpitations, and other peripheral manifestations of sympathetic activation. The goal is not sedation but dampening adrenergic output. Beta blockade is ... Ver explicação completa e trilha adaptativa →