Emergency Pharmacology Flashcards
7 cards from real ACLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Emergency Pharmacology flashcards as text
Which vasopressor can replace the second dose of epinephrine in a cardiac arrest algorithm?
Answer: Vasopressin 40 units IV
Vasopressin 40 units IV/IO can replace the first or second dose of epinephrine in cardiac arrest.
A patient in refractory VF has received two defibrillation attempts and epinephrine. What antiarrhythmic should be given next?
Answer: Amiodarone 300 mg IV push
Amiodarone 300 mg IV push is the first-line antiarrhythmic for shock-refractory VF/pulseless VT.
What is the maximum cumulative dose of adenosine for treating SVT in an adult?
Answer: 18 mg
The maximum cumulative adenosine dose is 18 mg (6 mg first dose, then 12 mg second dose if needed).
Which medication is contraindicated in a patient with WPW syndrome presenting with rapid atrial fibrillation?
Answer: Diltiazem
Diltiazem (and other AV-nodal blockers like verapamil and beta-blockers) are contraindicated in WPW with AF because they can enhance accessory pathway conduction.
Sodium bicarbonate is most clearly indicated during cardiac arrest in which clinical scenario?
Answer: Pre-existing hyperkalemia
Sodium bicarbonate has a clear indication in cardiac arrest caused by pre-existing hyperkalemia or tricyclic antidepressant overdose.
A patient develops Torsades de Pointes with a pulse. Which drug is the treatment of choice?
Answer: Magnesium sulfate 1–2 g IV over 15 min
Magnesium sulfate 1–2 g IV over 15 minutes is the first-line treatment for Torsades de Pointes.
When using atropine for symptomatic bradycardia, what is the maximum total IV dose?
Answer: 3 mg
The maximum total dose of atropine for symptomatic bradycardia is 3 mg IV.