CPR Cardiac Arrest Pharmacology 3

Question 1

In a patient with suspected beta-blocker overdose cardiac arrest, which high-dose therapy may be considered?

Accepted Answer

High-dose epinephrine up to 0.2 mg/kg IV

Answer

High-dose atropine 3 mg IV

Answer

High-dose calcium chloride 20 mg/kg IV

Answer

High-dose lidocaine 3 mg/kg IV

Question 2

What is the recommended IV/IO dose of adenosine for the FIRST dose when treating stable SVT?

Accepted Answer

6 mg rapid IV push

Answer

3 mg rapid IV push

Answer

12 mg rapid IV push

Answer

18 mg rapid IV push

Question 3

Which statement about atropine use in asystole is MOST accurate per current AHA guidelines?

Accepted Answer

Atropine has been removed from the asystole/PEA algorithm

Answer

Atropine 1 mg every 3–5 min is first-line for asystole

Answer

Atropine 0.5 mg is used to increase heart rate in asystole

Answer

Atropine reverses asystole by blocking vagal tone

Question 4

A patient in calcium channel blocker overdose arrest is unresponsive to standard ACLS. Which antidote should be considered?

Accepted Answer

High-dose insulin euglycemic therapy

Answer

Physostigmine

Answer

Protamine sulfate

Answer

Vitamin K

Question 5

What is the IO dose of epinephrine in adult cardiac arrest?

Accepted Answer

1 mg of 1:10,000 solution

Answer

0.5 mg of 1:1,000 solution

Answer

2 mg of 1:10,000 solution

Answer

1 mg of 1:1,000 solution

Question 6

Which drug is used to treat torsades de pointes that degenerates into pulseless VT/VF during cardiac arrest?

Accepted Answer

Magnesium sulfate 1–2 g IV

Answer

Amiodarone 300 mg IV

Answer

Lidocaine 1.5 mg/kg IV

Answer

Procainamide 20 mg/min infusion

Question 7

A paramedic administers sodium bicarbonate in a patient with prolonged cardiac arrest (>10 min). What is the PRIMARY concern with this intervention?

Accepted Answer

Paradoxical intracellular acidosis and hyperosmolarity

Answer

Hypokalemia worsening arrhythmia

Answer

Immediate hypernatremia causing seizures

Answer

Alkalosis reversing epinephrine effects