What is the recommended treatment for sinus tachycardia in this material?

What is the recommended treatment for sinus tachycardia in this material?

• A. Atropine
• B. Amiodarone
• C. Lidocaine
• D. Oxygen

Answer: (D)

Sinus tachycardia is a normal rhythm that is simply faster than usual, usually driven by the body's need for more oxygen or improved perfusion. The best initial management is to improve oxygenation when there is hypoxemia or respiratory distress, because correcting oxygen levels often reduces the physiological drive for a faster heart rate. Supplemental oxygen helps improve tissue oxygen delivery and can calm the heart rate once the underlying issue is addressed. Atropine is used for bradycardia, not tachycardia. Amiodarone and lidocaine are antiarrhythmics aimed at other kinds of arrhythmias (like ventricular tachycardia or certain SVTs) and aren’t appropriate for a benign sinus tachycardia. So the recommended treatment in this scenario is supplemental oxygen.

Sinus tachycardia is a normal rhythm that is simply faster than usual, usually driven by the body's need for more oxygen or improved perfusion. The best initial management is to improve oxygenation when there is hypoxemia or respiratory distress, because correcting oxygen levels often reduces the physiological drive for a faster heart rate. Supplemental oxygen helps improve tissue oxygen delivery and can calm the heart rate once the underlying issue is addressed. Atropine is used for bradycardia, not tachycardia. Amiodarone and lidocaine are antiarrhythmics aimed at other kinds of arrhythmias (like ventricular tachycardia or certain SVTs) and aren’t appropriate for a benign sinus tachycardia. So the recommended treatment in this scenario is supplemental oxygen.