Match the following poisoning with its treatment:

1. Arsenic A. Naloxone

2. Methanol B. Fomepizole

3. Benzodiazepine C. Flumnazenil

4. Opioid D. BAL

1. A

   1-D, 2-C, 3-B, 4-A

2. B

   1-D, 2-B, 3-C, 4-A

3. C

   1-A, 2-B, 3-C, 4-D

4. D

   1-B, 2-C, 3-A, 4-D

Appeared in: INI-CET EXAM -2025

Explanation

• This option correctly matches each poison with its specific antidote, a fundamental concept in toxicology.
• Arsenic, a heavy metal, is treated with BAL (Dimercaprol), which acts as a chelating agent to facilitate its excretion.
• Methanol poisoning is managed with Fomepizole, which blocks the enzyme alcohol dehydrogenase, preventing the formation of toxic metabolites.
• Benzodiazepine overdose is reversed by Flumazenil, a specific receptor antagonist.
• Opioid overdose, which classically presents with respiratory depression, is reversed with Naloxone, an opioid receptor antagonist.

Why Other Options Were Wrong

• Option A: This option incorrectly swaps the antidotes for Methanol and Benzodiazepines. Flumazenil is for benzodiazepines, not methanol, and Fomepizole is for methanol, not benzodiazepines.
• Option C: This option incorrectly pairs Arsenic with Naloxone and Opioids with BAL. Naloxone is the antidote for opioids, and BAL is the antidote for arsenic and other heavy metals.
• Option D: This option incorrectly matches all the pairs. It assigns Fomepizole to Arsenic, Flumazenil to Methanol, Naloxone to Benzodiazepines, and BAL to Opioids, none of which are correct.

Related Visual

• Visual 1: Table: A summary table matching common poisons (e.g., organophosphates, paracetamol, iron, cyanide) with their respective antidotes and mechanisms of action.
• Visual 2: Flowchart: A decision-making flowchart for a patient presenting with a suspected overdose, starting from initial assessment (ABCs) to specific antidote administration based on the presenting toxidrome.

Clinical Relevance

• Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing Antidotes for Common Poisonings in acute care settings.
• Rapid identification of the poison and administration of the correct antidote is a critical nursing skill in the emergency department to prevent morbidity and mortality.
• Nurses must be familiar with the signs and symptoms of specific poisonings (toxidromes), such as pinpoint pupils in opioid overdose or visual disturbances in methanol poisoning, to anticipate the need for the correct antidote.
• What if? If a patient with a benzodiazepine overdose is also a chronic benzodiazepine user or has a history of seizures, administering Flumazenil is relatively contraindicated as it can precipitate acute withdrawal and seizures. In this case, supportive care (airway management) is the priority.

How to Approach the Question

• This is a 'Match the Following' question, which tests your direct recall of specific pairs of information.
• First, read the two lists: one of poisons and one of antidotes.
• Try to match at least one or two pairs that you are certain about. For example, the Opioid-Naloxone pairing (4-A) is very common and a good starting point.
• Identifying that 4 matches with A immediately eliminates options 3 and 4, as they do not contain the '4-A' pair.
• Now, you only need to decide between option 1 and 2. Look at the remaining pairs. The Benzodiazepine-Flumazenil pairing (3-C) is also well-known.
• Option 2 contains both '4-A' and '3-C'. Option 1 contains '4-A' but has '3-B'. This confirms that Option 2 is the correct choice.

Concept Tested & Keywords

• Concept Tested: Antidotes for Common Poisonings
• Stem keywords: Poisoning, Treatment, Arsenic, Methanol, Benzodiazepine, Opioid
• Lead-in keywords: Match the following
• Negative lead-in flag: false

Question ID

Q4_Dai9bP7CRLB_1sKyR_y

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