A patient who has neurogenic shock is receiving a dobutamine infusion through a right forearm IV. Which assessment finding obtained by the nurse indicates a need for immediate action?

The patient's IV infusion site is cool and pale.

The patient's extremities are warm and dry.

The patient's urine output is 28 ml, over the past hour.

The patient's heart rate is 58 beats/min.

Answer and Explanation

The Correct Answer is A

A. In a patient receiving a dobutamine infusion, which is a vasopressor medication used to increase cardiac output, a cool and pale IV infusion site could indicate inadequate perfusion despite treatment. This finding requires immediate action to assess the patient's hemodynamic status and ensure adequate tissue perfusion.

B. Warm and dry extremities are typically indicative of adequate tissue perfusion. In neurogenic shock, vasodilation can lead to warm extremities due to decreased systemic vascular resistance. While this finding may be expected in neurogenic shock, it does not necessarily indicate a need for immediate action if other parameters are stable.

C. Decreased urine output can be indicative of inadequate renal perfusion and impaired kidney function. In a patient with neurogenic shock, maintaining adequate renal perfusion is crucial to prevent acute kidney injury. While decreased urine output warrants close monitoring and intervention, it may not require immediate action unless other signs of worsening perfusion are present.

D. A heart rate of 58 beats/min may be within the normal range for some patients, especially those who are receiving dobutamine, which can have a chronotropic effect. However, in the context of neurogenic shock, bradycardia may indicate a compensatory response to hypotension and decreased tissue perfusion. While bradycardia alone may not always require immediate action, it should prompt further assessment of the patient's hemodynamic status and response to treatment.

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Correct Answer is C

Explanation

C. Hypovolemia, or low blood volume, can lead to decreased venous return to the heart and reduced filling pressures. Consequently, CVP may decrease in hypovolemic states. Low CVP may indicate inadequate preload and reduced cardiac output, which are characteristic of hypovolemia.

A. Left ventricular failure typically results in elevated filling pressures rather than low CVP. In left ventricular failure, blood backs up into the pulmonary circulation, leading to increased pulmonary venous pressure and potentially elevated pulmonary capillary wedge pressure (PCWP), which is a surrogate marker for left atrial pressure. This elevated pressure is reflected in the CVP as well, resulting in increased CVP rather than low CVP.

B. Fluid overload typically results in elevated filling pressures and increased CVP rather than low CVP. Excess fluid volume increases venous return to the heart, leading to increased pressure within the central veins and elevated CVP.

D. Intracardiac shunts may cause alterations in cardiac pressures, but they typically do not result in consistently low CVP. Depending on the type and severity of the shunt, the direction and magnitude of pressure changes may vary. However, in the absence of other pathophysiological factors, intracardiac shunts are less likely to cause consistently low CVP.

A. Hypotension due to neurogenic shock B. Hypotension due to septic shock C. Hypotension due to hypovolemic shock D. Hypotension due to cardiogenic shock

Correct Answer is C

Explanation

C. its use in hypovolemic shock is generally not appropriate because the primary treatment for hypovolemic shock is fluid resuscitation to address the volume loss.

A. Dopamine is often used in neurogenic shock to increase systemic vascular resistance and improve blood pressure. Therefore, dopamine is an appropriate choice for the management of hypotension due to neurogenic shock.

B. Dopamine is commonly used in septic shock to improve cardiac output and systemic vascular resistance. It helps to support blood pressure and perfusion in septic shock patients.

D. It is indicated for cardiogenic shock as it increases cardiac contractility.

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A patient who has neurogenic shock is receiving a dobutamine infusion through a right forearm IV. Which assessment finding obtained by the nurse indicates a need for immediate action?

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