Which of the following poisoning presents with abdominal pain, diarrhea, Mees line on nails and myelosuppression: September 2011
**Core Concept**
Arsenic poisoning is a toxicological emergency that presents with a wide range of symptoms, including gastrointestinal manifestations, dermatological changes, and hematological effects. Arsenic is a heavy metal that disrupts cellular metabolism and causes oxidative stress, leading to tissue damage and organ dysfunction.
**Why the Correct Answer is Right**
The clinical presentation of arsenic poisoning is characteristic, with abdominal pain and diarrhea resulting from gastrointestinal irritation. Mees lines, which are white bands on the nails, are a hallmark sign of arsenic exposure. Myelosuppression, or bone marrow suppression, occurs due to arsenic's toxicity to rapidly dividing cells, including hematopoietic stem cells. This leads to pancytopenia, a decrease in all blood cell lines.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is often incorrect because it may present with similar gastrointestinal symptoms, but lacks the characteristic Mees lines and myelosuppression.
* **Option B:** This option is not correct because it typically presents with neurological symptoms, such as confusion and seizures, rather than the gastrointestinal and hematological effects seen in arsenic poisoning.
* **Option C:** This option is often incorrect because it may present with similar gastrointestinal symptoms, but lacks the characteristic Mees lines and myelosuppression.
**Clinical Pearl / High-Yield Fact**
Arsenic poisoning can occur through ingestion of contaminated water or food, and its symptoms can be delayed for several hours to days after exposure. Therefore, a high index of suspicion is necessary for prompt diagnosis and treatment.
**Correct Answer: C. Arsenic poisoning**