Propofol CNS effects include decreased ICP and IOP. Regarding analgesia and seizure threshold, which statement is true?

Propofol CNS effects include decreased ICP and IOP. Regarding analgesia and seizure threshold, which statement is true?

• A. Provides analgesia and lowers seizure threshold
• B. No analgesia and increases seizure threshold
• C. No analgesia and decreases seizure threshold
• D. Provides analgesia and increases seizure threshold

Answer: (B)

Propofol acts mainly as a GABA-A receptor agonist, producing hypnosis and amnesia while dampening brain metabolism and blood flow. This leads to decreases in intracranial and intraocular pressures. It does not provide meaningful analgesia—pain relief is not a property you rely on propofol for, so analgesia must come from separate agents such as opioids or local techniques. On seizure threshold, propofol has anticonvulsant effects; by enhancing inhibitory neurotransmission, it raises the threshold for seizures, making seizure activity less likely. Therefore, the true statement is that propofol provides no analgesia and increases seizure threshold.

Propofol acts mainly as a GABA-A receptor agonist, producing hypnosis and amnesia while dampening brain metabolism and blood flow. This leads to decreases in intracranial and intraocular pressures. It does not provide meaningful analgesia—pain relief is not a property you rely on propofol for, so analgesia must come from separate agents such as opioids or local techniques. On seizure threshold, propofol has anticonvulsant effects; by enhancing inhibitory neurotransmission, it raises the threshold for seizures, making seizure activity less likely. Therefore, the true statement is that propofol provides no analgesia and increases seizure threshold.