Dr Zack MD on Instagram: "Norepinephrine and phenylephrine are our go-to “blood pressure helpers” in the OR. Anesthesia can relax your blood vessels, dropping your pressure—so we use these meds to tighten things back up. Phenylephrine is a quick squeeze; norepinephrine is smoother and more balanced. Both keep blood flowing where it matters most. #AnesthesiaLife #ORFacts #MedEd #DoctorTok #anesthesiatips"