5. True or false, the reports of so-called transient radicular irritation (now referred to as "transient neurologic syndrome") following spinal anesthesia PROVES that certain local anesthetics are neurotoxic?
Answer: False
The cause of transient radicular irritation is unknown. It is likely a mild toxicity that resolves or ceases to be clinically apparent within a few days. However, until the real cause of transient radicular irritation becomes known, its existence does not prove that certain local anesthetics are neurotoxic.