Which medication should be administered first by the nurse?

The administration of magnesium sulfate to a client experiencing Torsades de pointes is the priority in this scenario due to the critical nature of arrhythmias and their potential to lead to more severe complications, including cardiac arrest. Torsades de pointes is a specific type of polymorphic ventricular tachycardia that often requires immediate intervention to restore normal rhythm. Magnesium sulfate is effective in stabilizing the cardiac membrane and can help to terminate the arrhythmia, making it a potentially life-saving treatment.

In contrast, administering digoxin to a client with a notably low apical pulse could pose the risk of worsening bradycardia and related complications, as digoxin typically increases the strength of heart contractions and may further decrease heart rate in this scenario.

Furosemide administration in the presence of a low potassium level could exacerbate the patient’s hypokalemia, increasing the risk for arrhythmias. Therefore, this medication would not be prioritized until the potassium level is addressed.

Verapamil is a calcium channel blocker that can lower blood pressure, which could be concerning in a patient already presenting with a low blood pressure reading. Although indicated in certain arrhythmias, this medication would not take precedence over immediate concerns regarding Torsades de point