Eclampsia seizures drug of choice
**Core Concept**
Eclampsia is a severe complication of preeclampsia characterized by seizures in a pregnant woman. The management of eclampsia involves immediate cessation of seizures and prevention of further seizures. Magnesium sulfate is the recommended treatment for eclampsia seizures due to its rapid onset and effectiveness in controlling seizures.
**Why the Correct Answer is Right**
Magnesium sulfate works by inhibiting the release of acetylcholine from nerve terminals, thus reducing the excitability of the central nervous system. It also has a mild vasodilatory effect, which can help in reducing blood pressure. The recommended dose of magnesium sulfate is 4-5 grams intravenously, followed by a maintenance dose of 1-2 grams per hour. Magnesium sulfate is preferred over other anticonvulsants like phenytoin and diazepam due to its safety profile and ease of administration.
**Why Each Wrong Option is Incorrect**
**Option A:** Phenytoin is a first-generation anticonvulsant that can cause hypotension and cardiac arrhythmias, making it a less desirable choice for eclampsia seizures.
**Option B:** Diazepam is a benzodiazepine that can cause respiratory depression and has a slower onset of action compared to magnesium sulfate.
**Option C:** Chlorpromazine is an antipsychotic medication that can cause hypotension and is not effective in controlling seizures.
**Clinical Pearl / High-Yield Fact**
Magnesium sulfate is the drug of choice for eclampsia seizures due to its rapid onset and effectiveness in controlling seizures. It is also essential to monitor magnesium levels and urine output to prevent magnesium toxicity.
**Correct Answer:** C. Chlorpromazine is an antipsychotic medication that can cause hypotension and is not effective in controlling seizures.