Which term refers to the pattern of poisoning symptoms?

• A. Toxidrome
• B. Poison
• C. Contamination
• D. Toxicology

Answer: (A)

The main idea here is recognizing a toxidrome—the pattern of poisoning symptoms that points to the likely class of toxin. A toxidrome isn’t a single symptom but a recognizable cluster of signs and effects across multiple body systems that tend to appear together with a particular poison or mechanism. Because this pattern helps clinicians infer what toxin is involved, it guides initial management while the exact substance is still being identified. For example, opioid poisoning typically shows pinpoint pupils, slowed breathing, and altered consciousness, guiding prompt naloxone administration; anticholinergic poisoning presents with hot, dry skin, dilated pupils, delirium, and tachycardia, pointing toward different supportive measures. The other terms describe different concepts: a poison is the substance itself, contamination is the presence of unwanted material, and toxicology is the study of poisons. A toxidrome captures the clinical pattern that links symptoms to a toxin class.