In the poisoning/overdose protocol for ingestions, which step should be performed?

• A. Administer antidote immediately
• B. Activate charcoal for all ingestions
• C. Delay treatment until symptoms develop
• D. Identify substance

Answer: (D)

Identifying the substance involved is the essential first step in ingestion poisoning management. Knowing what was ingested tells you exactly what treatments will help or harm, guides whether a specific antidote is appropriate, and directs decontamination decisions and monitoring for particular toxic effects. Without knowing the toxin, you risk giving therapy that is ineffective or even dangerous—for example, using an antidote that only works for a specific substance, or choosing gastric decontamination methods that are contraindicated for certain poisons. Activated charcoal is not universally appropriate; some substances are not well adsorbed, and others (like caustics or hydrocarbons) can cause additional injury or be aspirated. Waiting for symptoms to appear ignores the time-sensitive nature of many poisonings and can miss a window where decontamination or antidotal therapy could be beneficial. So, identifying the substance first sets the stage for targeted, safe, and effective management.