Which information about a patient who is receiving cisatracurium (Nimbex) to prevent asynchronous breathing with the positive pressure ventilator requires action by the nurse?

The patient has no cough reflex when suctioned.

The patient's oxygen saturation is 90% to 93%

The patient does not respond to voice.

No sedative is ordered for the patient

Answer and Explanation

The Correct Answer is D

D Sedatives are typically administered alongside neuromuscular blockers to ensure the patient's comfort and prevent awareness during mechanical ventilation.

A The absence of a cough reflex when suctioned is expected in a patient receiving cisatracurium (Nimbex) because it is a neuromuscular blocking agent that induces paralysis. Cisatracurium inhibits skeletal muscle movement, including the muscles involved in coughing.

B An oxygen saturation between 90% to 93% is within an acceptable range for a patient in this condition.

C The lack of response to voice may indicate that the patient is sedated or experiencing effects from the neuromuscular blocking agent. However, since the patient is receiving cisatracurium to prevent asynchronous breathing with the positive pressure ventilator, it's expected that the patient will not respond to voice due to the medication-induced paralysis.

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Correct Answer is A

Explanation

A. The insertion of a pulmonary artery catheter can help in assessing hemodynamic parameters and distinguishing between these two conditions. It provides direct measurement of pulmonary artery pressures, which can be elevated in the case of heart failure.

B. A ventilation-perfusion (V/Q) scan is used to evaluate ventilation and perfusion in the lungs. While it can help identify areas of ventilation-perfusion mismatch, it may not be the most appropriate initial test for distinguishing between ARDS and pulmonary edema.

C. Drawing blood for arterial blood gases is also a critical step as it helps in assessing the severity of hypoxemia and respiratory failure.

D. A chest x-ray can show the presence of bilateral opacities, which are indicative of ARDS when cardiac failure or fluid overload is not the primary cause. However, transthoracic echocardiography (TTE) is often performed to seek evidence of cardiac dysfunction when cardiogenic pulmonary edema cannot be excluded by clinical evaluation, laboratory findings, or imaging.

A. Anaphylaxis B. Hypovolemia C. Pulmonary embolism D. Myocardial infarction

Correct Answer is D

Explanation

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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Which information about a patient who is receiving cisatracurium (Nimbex) to prevent asynchronous breathing with the positive pressure ventilator requires action by the nurse?

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Naxlex Comprehensive Predictor Exams

A patient develops increasing dyspnea and hypoxemia 2 days after heart surgery. What procedure should the nurse anticipate assisting with to determine whether the patient has acute respiratory distress syndrome (ARDS) or pulmonary edema caused by heart failure?

Correct Answer is A

Explanation

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

Correct Answer is D

Explanation

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