ACLS Emergency Pharmacology 2

Question 1

Which vasopressor can replace the second dose of epinephrine in a cardiac arrest algorithm?

Accepted Answer

Vasopressin 40 units IV

Answer

Dopamine 10 mcg/kg/min IV

Answer

Norepinephrine 8 mg IV

Answer

Phenylephrine 200 mcg IV

Question 2

A patient in refractory VF has received two defibrillation attempts and epinephrine. What antiarrhythmic should be given next?

Accepted Answer

Amiodarone 300 mg IV push

Answer

Lidocaine 1.5 mg/kg IV push

Answer

Magnesium 2 g IV push

Answer

Procainamide 100 mg IV push

Question 3

What is the maximum cumulative dose of adenosine for treating SVT in an adult?

Accepted Answer

18 mg

Answer

30 mg

Answer

12 mg

Answer

6 mg

Question 4

Which medication is contraindicated in a patient with WPW syndrome presenting with rapid atrial fibrillation?

Accepted Answer

Diltiazem

Answer

Amiodarone

Answer

Adenosine

Answer

Verapamil

Question 5

Sodium bicarbonate is most clearly indicated during cardiac arrest in which clinical scenario?

Accepted Answer

Pre-existing hyperkalemia

Answer

Prolonged arrest >10 minutes

Answer

Hypoxic lactic acidosis

Answer

Respiratory acidosis from hypoventilation

Question 6

A patient develops Torsades de Pointes with a pulse. Which drug is the treatment of choice?

Accepted Answer

Magnesium sulfate 1–2 g IV over 15 min

Answer

Amiodarone 150 mg IV over 10 min

Answer

Lidocaine 1 mg/kg IV push

Answer

Procainamide 20 mg/min IV

Question 7

When using atropine for symptomatic bradycardia, what is the maximum total IV dose?

Accepted Answer

3 mg

Answer

1 mg

Answer

2 mg

Answer

0.5 mg