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    Med Surg Proctored Exam (shock) Samuel Merit University)

    Which patient would you want to be careful in when administering vasopressors?

    Explanation & Rationale

    Choice A rationale A Mean Arterial Pressure of 50 mmHg is significantly below the physiological goal of 65 mmHg required to maintain organ perfusion. In this scenario, vasopressors are usually indicated after fluid resuscitation has failed to raise the pressure. While care is always needed, this patient is a primary candidate for vasopressor support to prevent acute kidney injury and brain ischemia. The drug is used here as a life-saving intervention to restore hemodynamic stability. Choice B rationale Patients who remain hypotensive despite receiving adequate intravenous fluids are the standard population for vasopressor initiation. Fluid responsiveness is typically assessed first to ensure the intravascular compartment is full. If the patient does not respond to a bolus of 30 mL/kg of crystalloid, vasopressors like norepinephrine are started. This is a standard protocol in septic shock management, and while the nurse must monitor for side effects, these patients require the medication. Choice C rationale A patient with a cough and fever is showing signs of infection, but this does not automatically indicate a need for vasopressors or a reason to be exceptionally cautious beyond standard practice. Unless the infection has progressed to septic shock with refractory hypotension, vasopressors would not even be administered. The focus for this patient would be on antibiotics, antipyretics, and diagnostic testing like chest x-rays to determine the source of the respiratory or systemic illness. Choice D rationale In cardiogenic shock, the primary problem is a failing pump. Vasopressors increase systemic vascular resistance, which increases afterload. This means the weakened heart must work harder to push blood against tighter vessels, potentially worsening myocardial oxygen demand and decreasing cardiac output further. While sometimes necessary to maintain a minimum perfusion pressure, they must be used with extreme caution and often in conjunction with inotropes to avoid further damaging the struggling heart muscle.

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