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 C

Explanation

C. Amiodarone is a Class III antiarrhythmic medication commonly used for the acute management of atrial fibrillation with a rapid ventricular rate. It works by blocking multiple ion channels, prolonging the action potential duration, and slowing conduction in the atria and ventricles. Amiodarone is often used when other interventions such as vagal maneuvers or beta blockers are ineffective or contraindicated. In this scenario, where the patient is hypotensive and symptomatic, intravenous amiodarone may be administered to control the ventricular rate and stabilize hemodynamics

A. Bearing down, or the Valsalva maneuver, is a vagal maneuver that can sometimes help slow the heart rate in certain arrhythmias by increasing parasympathetic tone. However, it may not be effective or safe in all situations, especially if the patient is hypotensive or confused. In this scenario, immediate pharmacological intervention is likely needed to control the heart rate and stabilize hemodynamics.

B. Lidocaine is not typically used to treat atrial fibrillation with a rapid ventricular rate. Lidocaine is a Class IB antiarrhythmic medication primarily used for the treatment of ventricular arrhythmias, such as ventricular tachycardia and ventricular fibrillation. It is not considered a first-line agent for atrial fibrillation and may not effectively control the ventricular rate in this situation.

D. While beta blockers are commonly used for rate control in atrial fibrillation, they may not be the best choice in this scenario where the patient is hypotensive and symptomatic. Beta blockers can further decrease blood pressure and exacerbate hypotension, especially in patients with compromised hemodynamics. In such cases, other rate-controlling agents like calcium channel blockers or amiodarone may be preferred.

A. Hypotension B. Nausea C. Decreased level of consciousness D. Severe dyspnea E. Headache

Correct Answer is ["A","C","D","E"]

Explanation

A. Hypotension may result from decreased cardiac output due to hypoxemia and acidosis or as a compensatory response to hypoxia-induced vasodilation. Therefore, monitoring for hypotension is important in ARF.

C. Hypoxemia can impair cerebral perfusion and neuronal function, leading to alterations in mental status ranging from confusion to coma. Decreased level of consciousness is a concerning sign of inadequate oxygenation and should be closely monitored in patients with ARF.

D. Dyspnea, or difficulty breathing, is a hallmark symptom of respiratory failure. In ARF, the respiratory system's inability to adequately oxygenate or ventilate leads to increased work of breathing and feelings of breathlessness. Patients with ARF often experience severe dyspnea as they struggle to maintain adequate gas exchange.

E. Headache is not typically considered a primary manifestation of ARF. However, it may occur as a secondary symptom due to factors such as hypoxemia, hypercapnia, or acidosis. Patients with ARF may experience headache as a result of cerebral vasodilation in response to hypoxia or as a symptom of underlying conditions contributing to respiratory failure.

B. Nausea is not a typical manifestation of ARF itself. However, it may occur as a secondary symptom due to factors such as hypoxia, acidosis, or medications administered for the management of ARF. While nausea may be present, it is not a direct result of respiratory failure.

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

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who was admitted for atrial fibrillation rapid ventricular rate of 130 beat/min with confusion. The client's blood pressure is 87/50. What order should the nurse expect to receive from the provider?

Correct Answer is C

Explanation

A nurse is caring for a client who has an acute respiratory failure (ARF). The nurse should monitor the client for which of the following manifestations of this condition? (Select all that apply.)

Correct Answer is ["A","C","D","E"]

Explanation

The rapid response team (RRT) is caring for a client with asystole. Which nursing statement made to the client's family about the actions of the RRT is appropriate?

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A nurse is caring for a client who has a cardiopulmonary arrest. The nurse anticipates the emergency response team will administer which of the following medications if the client's restored rhythm is symptomatic bradycardia?

A nurse is interpreting a client's ECG strip. Which of the following components of the ECG should the nurse examine to determine the time it takes for ventricular depolarization and repolarization?

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

Which of the following is an appropriate nursing intervention for a patient with a pulmonary artery catheter?

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?