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?
Increase the rate for the dopamine infusion.
Increase the rate for the sodium nitroprusside infusion.
Decrease the rate for the nitroglycerin infusion.
Decrease the rate for the 5% dextrose in normal saline infusion.
The Correct Answer is B
B. Sodium nitroprusside is a potent vasodilator used to reduce systemic vascular resistance and afterload, thereby improving cardiac output and tissue perfusion in cardiogenic shock. In this scenario, where the patient has cool and clammy skin with high SVR, indicating peripheral vasoconstriction,
increasing the rate of sodium nitroprusside infusion can help vasodilate peripheral vessels, reduce afterload, and improve tissue perfusion
A. Dopamine is a medication commonly used in the management of cardiogenic shock to increase cardiac output and systemic blood pressure. However, in this scenario where the patient is cool and clammy with high SVR, indicating vasoconstriction and potential peripheral hypoperfusion, increasing the rate of dopamine infusion may further increase systemic vascular resistance and exacerbate peripheral vasoconstriction. This can worsen tissue perfusion and exacerbate the patient's condition.
.
C. Nitroglycerin is another vasodilator commonly used in the management of cardiogenic shock to reduce preload and afterload, thereby improving cardiac output and tissue perfusion. However, decreasing the rate of nitroglycerin infusion may further exacerbate vasoconstriction and increase SVR, worsening tissue perfusion in this scenario. Therefore, decreasing the rate of nitroglycerin infusion is not indicated.
D. Intravenous fluids such as 5% dextrose in normal saline are typically administered to maintain adequate intravascular volume and perfusion pressure in shock states. However, decreasing the rate of intravenous fluid infusion may further decrease intravascular volume and preload, potentially exacerbating hypoperfusion and worsening the patient's condition. Therefore, decreasing the rate of intravenous fluid infusion is not indicated in this scenario.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
D. Asystole represents the absence of electrical activity in the heart and is not amenable to defibrillation. Therefore, the RRT would continue cardiopulmonary resuscitation (CPR) with chest compressions and may administer medications or other interventions as indicated. This statement provides accurate information to the family about the patient's condition and the actions being taken by the RRT.
A. Defibrillation is not indicated for asystole. Asystole represents a flatline on the cardiac monitor, indicating the absence of electrical activity in the heart. Defibrillation is only effective for certain types of cardiac rhythms, such as ventricular fibrillation or pulseless ventricular tachycardia. Therefore, the RRT would not use defibrillation for a patient in asystole.
B. It does not provide the family with information about the patient's condition or the actions being taken by the RRT. Moreover, excluding the family from the patient's care may cause additional distress and prevent them from being present to support their loved one during a critical situation.
C. Cardiopulmonary resuscitation (CPR) is performed to maintain blood flow and oxygenation to vital organs during cardiac arrest. However, it does not restore normal blood flow or circulation. The goal of CPR is to provide temporary support until advanced interventions can be initiated or until return of spontaneous circulation (ROSC) is achieved.
Correct Answer is B
Explanation
B Somnolence, or excessive sleepiness, can indicate respiratory depression, hypercapnia (elevated PaCO2), or impending respiratory failure. Somnolence in this context is concerning as it may suggest worsening respiratory status and impending respiratory compromise. Therefore, it should be immediately reported to the healthcare provider for further evaluation and intervention.
A blood pressure of 164/98 mmHg is elevated but may not necessarily require immediate intervention, especially if the patient is not exhibiting signs of acute hypertensive crisis or end-organ damage.
However, it should be closely monitored and managed as appropriate. While hypertension may contribute to respiratory distress, it may not be the most critical finding to report immediately in a patient with possible respiratory failure and a high PaCO2.
C An oxygen saturation of 90% indicates hypoxemia, which can exacerbate respiratory failure and contribute to respiratory distress. While hypoxemia requires prompt intervention to improve oxygenation, it may not be the most critical finding to report immediately if the patient is not showing signs of severe respiratory distress or impending respiratory failure. However, it should be closely monitored and managed to prevent further deterioration.
D Weakness is a nonspecific symptom and may be related to various underlying causes, including respiratory failure, electrolyte imbalances, or systemic illness. While weakness warrants further assessment and management, it may not be the most urgent finding to report immediately in a patient with possible respiratory failure and a high PaCO2 unless it is accompanied by other concerning symptoms or signs of impending respiratory compromise.
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