Which of the following is NOT an appropriate indication for the use of dopamine in critical care?
Hypotension due to neurogenic shock
Hypotension due to septic shock
Hypotension due to hypovolemic shock
Hypotension due to cardiogenic shock
The Correct Answer is C
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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is []
Explanation
In respiratory acidosis, there is an accumulation of carbon dioxide (CO2) in the blood due to inadequate ventilation, leading to an increase in the partial pressure of arterial carbon dioxide (PaCO2) and a decrease in pH.
This is often caused by conditions that impair ventilation, such as airway obstruction, respiratory muscle weakness, lung diseases (e.g., chronic obstructive pulmonary disease, pneumonia), or central nervous system depression (e.g., drug overdose, head injury).
Management of respiratory acidosis include bronchodilators, sodium bicarbonate, adequate ventilation, and treatment of underlying causes.
Correct Answer is A
Explanation
A. Atropine is commonly used in the treatment of symptomatic bradycardia. It works by blocking vagal stimulation, leading to increased heart rate. Atropine is typically administered in doses of 0.5 to 1 mg every 3 to 5 minutes, up to a total dose of 3 mg, in patients with symptomatic bradycardia.
B. Sodium bicarbonate is not indicated for symptomatic bradycardia. It is primarily used in the management of metabolic acidosis, hyperkalemia, and certain drug overdoses. While sodium bicarbonate may be administered in specific situations during cardiopulmonary resuscitation (CPR), it is not the first-line treatment for symptomatic bradycardia.
C. Magnesium sulfate is used in the treatment of certain arrhythmias, such as torsades de pointes and refractory ventricular fibrillation or ventricular tachycardia associated with hypomagnesemia. However, it is not the first-line treatment for symptomatic bradycardia. Magnesium sulfate may be considered if there are specific indications such as torsades de pointes or suspected hypomagnesemia.
D. Epinephrine is commonly used in advanced cardiac life support (ACLS) protocols for cardiac arrest. It is not the first-line treatment for symptomatic bradycardia. Epinephrine is primarily used during CPR to improve coronary and cerebral perfusion by increasing systemic vascular resistance and heart rate.
However, in the case of symptomatic bradycardia, atropine is typically preferred as the initial medication.
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