CPR Toxicological Emergencies and Overdose Management 2

Question 1

Which antidote is used for acetaminophen (Tylenol) overdose to prevent hepatotoxicity?

Accepted Answer

N-acetylcysteine (NAC)

Answer

Fomepizole

Answer

Deferoxamine

Answer

Dimercaprol

Question 2

A patient is found unresponsive in a closed garage with altered mental status, severe headache, and cherry-red skin. What poisoning is most likely?

Accepted Answer

Carbon monoxide

Answer

Cyanide poisoning

Answer

Hydrogen sulfide

Answer

Methemoglobin-forming agent

Question 3

What is the treatment for hemodynamically unstable beta-blocker overdose refractory to initial resuscitation measures?

Accepted Answer

High-dose insulin euglycemic therapy and calcium

Answer

Amiodarone infusion

Answer

Adenosine IV

Answer

Magnesium sulfate IV

Question 4

Which benzodiazepine reversal agent must be used with extreme caution in patients with chronic benzodiazepine use or seizure history?

Accepted Answer

Flumazenil

Answer

Naloxone

Answer

Physostigmine

Answer

Protamine sulfate

Question 5

A patient ingested methanol and presents with visual disturbances and high anion-gap metabolic acidosis. What is the antidote?

Accepted Answer

Fomepizole (4-MP)

Answer

Thiamine IV

Answer

Sodium bicarbonate only

Answer

Pyridoxine IV

Question 6

For severe calcium channel blocker overdose with cardiogenic shock unresponsive to vasopressors and calcium, which advanced therapy is recommended?

Accepted Answer

Intravenous lipid emulsion therapy

Answer

Digoxin loading

Answer

Dopamine at low dose only

Answer

Adenosine IV push

Question 7

A patient collapsed at a house fire presents with unconsciousness, severe lactic acidosis, and cardiovascular collapse from suspected cyanide poisoning. What is the preferred antidote?

Accepted Answer

Hydroxocobalamin (Cyanokit)

Answer

N-acetylcysteine

Answer

Sodium thiosulfate alone

Answer

Naloxone