Which technique has been shown to prevent anesthetic-related nerve injury during placement of peripheral nerve blocks?

Which technique has been shown to prevent anesthetic-related nerve injury during placement of peripheral nerve blocks?

• A. Ultrasound guided regional technique
• B. Transarterial technique
• C. Nerve stimulator
• D. None of the above

Answer: (D)

This question tests whether a single technique has been proven to prevent anesthetic-related nerve injury during peripheral nerve blocks. While ultrasound guidance improves visualization of nerves, needles, and surrounding structures, and can reduce unintended needle contact and vascular puncture, it has not been shown to completely prevent nerve injury. Likewise, a nerve stimulator helps identify proximity to a nerve by eliciting a motor response, but it also does not guarantee avoidance of intraneural injection or nerve damage. The transarterial approach is not a recognized protective strategy for preventing nerve injury. Taken together, none of these techniques has been proven to definitively prevent anesthetic-related nerve injury, so the correct choice is that none of the above.

This question tests whether a single technique has been proven to prevent anesthetic-related nerve injury during peripheral nerve blocks. While ultrasound guidance improves visualization of nerves, needles, and surrounding structures, and can reduce unintended needle contact and vascular puncture, it has not been shown to completely prevent nerve injury. Likewise, a nerve stimulator helps identify proximity to a nerve by eliciting a motor response, but it also does not guarantee avoidance of intraneural injection or nerve damage. The transarterial approach is not a recognized protective strategy for preventing nerve injury. Taken together, none of these techniques has been proven to definitively prevent anesthetic-related nerve injury, so the correct choice is that none of the above.