CPR Cardiac Arrest Pharmacology 2

Question 1

What is the recommended dose of vasopressin that may be used as an alternative to the first or second dose of epinephrine in cardiac arrest?

Accepted Answer

40 units IV/IO

Answer

20 units IV/IO

Answer

60 units IV/IO

Answer

80 units IV/IO

Question 2

A patient in refractory VF has received 3 shocks and 300 mg amiodarone. What is the correct supplemental dose of amiodarone?

Accepted Answer

150 mg IV

Answer

75 mg IV

Answer

100 mg IV

Answer

300 mg IV

Question 3

Which electrolyte disturbance is a Class I indication for magnesium sulfate administration during cardiac arrest?

Accepted Answer

Hypomagnesemia-induced torsades de pointes

Answer

Hyperkalemia

Answer

Hypocalcemia

Answer

Hyponatremia

Question 4

During a cardiac arrest secondary to tricyclic antidepressant overdose, which drug is the treatment of choice to reverse cardiotoxicity?

Accepted Answer

Sodium bicarbonate

Answer

Flumazenil

Answer

Calcium gluconate

Answer

Naloxone

Question 5

What is the primary mechanism by which epinephrine improves outcomes in cardiac arrest?

Accepted Answer

Alpha-1 vasoconstriction increasing coronary perfusion pressure

Answer

Beta-1 stimulation increasing heart rate

Answer

Beta-2 bronchodilation improving oxygenation

Answer

Direct defibrillation of the myocardium

Question 6

A patient arrests after administration of succinylcholine and develops peaked T-waves on the monitor. Which drug should be given first?

Accepted Answer

Calcium chloride

Answer

Sodium bicarbonate

Answer

Insulin and dextrose

Answer

Kayexalate

Question 7

Lidocaine is considered an acceptable alternative to amiodarone in which arrest rhythm?

Accepted Answer

Refractory ventricular fibrillation

Answer

Asystole

Answer

PEA with narrow QRS

Answer

Complete heart block