A 63-year-old man with urosepsis presents with hypotension (BP 78/52 mmHg), tachycardia (HR 118 bpm), tachypnea (RR 22), fever (39.2°C), and altered mental status despite aggressive fluid resuscitation. Physical examination reveals warm extremities and no peripheral edema. Lactate is elevated at 4.2 mmol/L. A vasopressor agent is initiated that increases systemic vascular resistance primarily through alpha-1 adrenergic receptor stimulation while modestly enhancing cardiac contractility. Which drug was most likely administered?
- A)Adenosine
- B)Isoproterenol
- C)Dobutamine
- D)Milrinone
- E)NorepinephrineGABARITO
Explicação
Norepinephrine is the first-line vasopressor for septic shock because it strongly stimulates alpha-1 receptors, increasing vascular tone, while also providing some beta-1 support. The warm distributive shock picture after adequate fluid resuscitation fits sept... Ver explicação completa e trilha adaptativa →