Post-anesthetic nausea and vomiting is uncommon with:
**Core Concept**
Post-anesthetic nausea and vomiting (PANV) is a common complication of general anesthesia, affecting up to 30% of patients. The pathophysiology involves the activation of various neurotransmitters and hormones, including serotonin, acetylcholine, and histamine, which stimulate the vomiting center in the brain.
**Why the Correct Answer is Right**
The correct answer is **Propofol**, as it has antiemetic properties and is less likely to cause PANV compared to other anesthetic agents. Propofol inhibits the release of serotonin and acetylcholine, which are key players in the development of nausea and vomiting. Additionally, propofol has a rapid onset and short duration of action, which may contribute to its lower incidence of PANV.
**Why Each Wrong Option is Incorrect**
* **Option A:** Opioids, such as fentanyl and morphine, are known to cause nausea and vomiting, making them a common cause of PANV.
* **Option B:** Volatile anesthetics, such as isoflurane and sevoflurane, can cause PANV by stimulating the vomiting center in the brain.
* **Option D:** Muscle relaxants, such as succinylcholine, can contribute to PANV by stimulating the release of histamine and other neurotransmitters.
**Clinical Pearl / High-Yield Fact**
When managing patients at risk for PANV, consider using prophylactic antiemetic medications, such as ondansetron or metoclopramide, in combination with a short-acting anesthetic agent like propofol.
**Correct Answer: A. Propofol**