Which of the following is a common cause of cardiogenic shock?

Anaphylaxis

Hypovolemia

Pulmonary embolism

Myocardial infarction

Answer and Explanation

The Correct Answer is D

D. Myocardial infarction (heart attack) is a common cause of cardiogenic shock. In myocardial infarction, part of the heart muscle becomes ischemic or necrotic due to occlusion of a coronary artery. This leads to impaired cardiac function and reduced cardiac output, resulting in cardiogenic shock. Prompt recognition and treatment of myocardial infarction are crucial to prevent or manage cardiogenic shock.
A. Anaphylaxis is a severe allergic reaction that can lead to systemic vasodilation and distributive shock, but it is not a common cause of cardiogenic shock. In anaphylaxis, the primary mechanism of shock is typically related to widespread vasodilation and increased vascular permeability rather than impaired cardiac function.
B. Hypovolemic shock occurs due to a decrease in intravascular volume, leading to inadequate tissue perfusion. It is not a common cause of cardiogenic shock, as the underlying mechanism is different. In hypovolemic shock, the primary issue is the loss of circulating blood volume, whereas cardiogenic shock involves impaired cardiac function.
C. Pulmonary embolism can lead to acute right heart strain or failure, which may result in hemodynamic instability and shock. However, pulmonary embolism typically causes obstructive shock rather than cardiogenic shock. Obstructive shock occurs when blood flow is obstructed, such as by a pulmonary embolism, leading to reduced cardiac output.

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Correct Answer is B

Explanation

B. Checking the left hand for pallor can help assess peripheral perfusion and determine if there is adequate blood flow distal to the arterial line insertion site. Pallor in the left hand could indicate decreased perfusion, which may contribute to the low-pressure alarm.

A. Re-zeroing the monitoring equipment may be necessary to ensure accurate pressure readings. However, it should not be the first action taken when the low-pressure alarm sounds. Before re-zeroing, the nurse should assess the patient's condition to ensure there are no immediate issues affecting arterial pressure.

C. Fast flushing the arterial line is not typically the first action to take when the low-pressure alarm sounds. Fast flushing may increase the risk of dislodging the catheter or causing air embolism if there is a problem with the line.

D. Assessing for dysrhythmias should be part of the overall assessment but may not be the first action taken in response to the alarm.

A. Prepare to insert a central line. B. Administer oxygen via nasal cannula. C. Raise the foot of the bed to a 90° angle. D. Remove the dressing to inspect the wound.

Correct Answer is B

Explanation

B. This is a reasonable action given the client's respiratory rate and potential hypoxemia resulting from the sucking chest wound. Providing supplemental oxygen can help improve oxygenation and support the client's respiratory effort. However, it doesn't directly address the underlying cause of the shock.

A. In this scenario, the client's vital signs indicate signs of shock, which could be due to significant blood loss from the sucking chest wound. While inserting a central line may be necessary for administering fluids and medications rapidly, it's not the immediate priority in this situation. Stabilizing the client's condition takes precedence.

C. Elevating the foot of the bed to a 90° angle is not appropriate in this situation. This position can further decrease venous return to the heart, potentially exacerbating the client's hypotension and shock. It's crucial to maintain a neutral or slightly elevated position to optimize venous return.

D. While it's important to assess the wound and monitor for any changes, removing the dressing on a sucking chest wound without appropriate precautions can worsen the client's condition. The dressing helps to maintain a seal over the wound, preventing further air from entering the pleural space and worsening the tension pneumothorax. Removing the dressing should be done cautiously and preferably by a healthcare provider trained in managing chest trauma.

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Which of the following is a common cause of cardiogenic shock?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which action should the nurse take first when the low pressure alarm sounds for a patient who has an arterial line in the left radial artery?

Correct Answer is B

Explanation

A nurse in an emergency department is caring for a client who has a sucking chest wound resulting from a gunshot. The client has a blood pressure of 100/60 mm Hg, a weak pulse rate of 118/min, and a respiratory rate of 40/min. Which of the following actions should the nurse take?

Correct Answer is B

Explanation

A nurse is caring for a client who is unconscious and has a breathing pattern characterized by alternating periods of hyperventilation and apnea. The nurse should document that the client has which of the following respiratory alterations?

An older patient with cardiogenic shock is cool and clammy. Hemodynamic monitoring indicates a high systemic vascular resistance (SVR). Which intervention should the nurse anticipate?

When admitting a patient with possible respiratory failure and a high PaCO2, which assessment information should be immediately reported to the health care provider?

A nurse is caring for a client who is postoperative and whose respirations are shallow and 9/min. Which of the following acid-based imbalances should the nurse identify the client as being at risk for developing initially?

A nurse is conducting a primary survey of a client who has sustained life-threatening injuries due to a motor-vehicle crash. Identify the sequence of actions the nurse should take. (Move the actions into the box on the right, placing them in the selected order of performance. Use all the steps.)

A nurse is caring for a client who has pericarditis and reports feeling a new onset of palpitations and shortness of breath. Which of the following assessments should indicate to the nurse that the client may have developed atrial fibrillation?

Which of the following is NOT an appropriate indication for the use of dopamine in critical care?

A nurse in an urgent care center is assessing a client who reports a sudden onset of irregular palpitations, fatigue, and dizziness. The nurse finds a rapid and irregular heart rate with a significant pulse deficit. Which of the following dysrhythmias should the nurse expect to find on the ECG?