All the following statements are true regarding methyl alcohol poisoning except
**Core Concept**
Methyl alcohol (methanol) poisoning is a toxic condition caused by the ingestion of methanol, a potent neurotoxin and central nervous system depressant. It primarily affects the visual pathway and the central nervous system, leading to serious complications if not promptly treated.
**Why the Correct Answer is Right**
Methanol is metabolized by the enzyme alcohol dehydrogenase to form formaldehyde, which is then converted to formic acid by the enzyme aldehyde dehydrogenase. Formic acid is responsible for the toxic effects of methanol, including optic neuropathy, retinal damage, and central nervous system depression. The metabolism of methanol is accelerated by the presence of ethanol, which is why ethanol is sometimes used as an antidote.
**Why Each Wrong Option is Incorrect**
* **Option A:** This statement is true, as methanol poisoning can cause visual disturbances, including blurred vision, eye pain, and even blindness.
* **Option B:** This statement is true, as methanol is metabolized to formic acid, which is responsible for the toxic effects of methanol.
* **Option C:** This statement is true, as methanol poisoning can cause symptoms such as headache, nausea, vomiting, and confusion.
* **Option D:** This statement is false, as methanol is metabolized to formic acid, not acetic acid.
**Clinical Pearl / High-Yield Fact**
In cases of methanol poisoning, it is essential to administer fomepizole or ethanol as an antidote to inhibit the metabolism of methanol to formic acid. This can help prevent the progression of toxic effects and improve outcomes.
**Correct Answer:** D.