Which statement about cardiogenic shock is least accurate?

Which statement about cardiogenic shock is least accurate?

• A. It is characterized by high pulmonary vascular resistance with normal PCWP
• B. It can respond to vasopressor therapy
• C. It causes hypotension and cool skin
• D. It does not require oxygen therapy

Answer: (D)

Cardiogenic shock is a state in which the heart cannot pump enough blood to meet the body's needs, leading to low cardiac output and inadequate tissue perfusion. This produces hypotension, cool, clammy skin, and signs of end-organ hypoperfusion. Left-sided filling pressures are typically elevated (high pulmonary capillary wedge pressure) because the failing ventricle can’t effectively move blood forward, causing back pressure into the lungs. Oxygen delivery to tissues is diminished, so supplemental oxygen is commonly required to improve arterial oxygen content and help restore adequate oxygen delivery; in severe cases, ventilatory support may be needed. Vasopressors and inotropes are used to support perfusion, but they do not negate the need for oxygen therapy. The statement that oxygen therapy is not required is the least accurate.

Cardiogenic shock is a state in which the heart cannot pump enough blood to meet the body's needs, leading to low cardiac output and inadequate tissue perfusion. This produces hypotension, cool, clammy skin, and signs of end-organ hypoperfusion. Left-sided filling pressures are typically elevated (high pulmonary capillary wedge pressure) because the failing ventricle can’t effectively move blood forward, causing back pressure into the lungs. Oxygen delivery to tissues is diminished, so supplemental oxygen is commonly required to improve arterial oxygen content and help restore adequate oxygen delivery; in severe cases, ventilatory support may be needed. Vasopressors and inotropes are used to support perfusion, but they do not negate the need for oxygen therapy. The statement that oxygen therapy is not required is the least accurate.