What is the typical criterion to escalate vasopressor support in a patient with persistent hypotension after fluids?

• A. MAP remains <65 mmHg or adequate perfusion despite fluids
• B. Temperature elevated
• C. WBC count high
• D. Oxygen saturation above 95%

Answer: (A)

In shock management after fluid resuscitation, the key trigger to start or increase vasopressor support is when the mean arterial pressure remains below about 65 mmHg, indicating ongoing inadequate tissue perfusion. Vasopressors raise vascular tone and systemic vascular resistance, increasing MAP to help restore organ perfusion (brain, kidneys, gut, etc.). If perfusion remains compromised, dose adjustments are made to reach that MAP target while monitoring signs like urine output and lactate. Fever, high white blood cell count, or a normal/high oxygen saturation do not directly reflect hemodynamic status or guide vasopressor needs, so they aren’t used as indicators to escalate vasopressor therapy.