ABA ABA Regional Anesthesia and Pain Management 2

Question 1

Which brachial plexus block is often called the 'spinal of the arm' because it reliably anesthetizes the entire arm?

Accepted Answer

Supraclavicular block

Answer

The supraclavicular block targets the brachial plexus trunks where they are most compact, providing reliable coverage for the entire arm.

Question 2

In an erector spinae plane (ESP) block, local anesthetic is deposited between the erector spinae muscle and which bony landmark?

Accepted Answer

The transverse process

Answer

In the ESP block, local anesthetic is injected between the erector spinae muscle and the tip of the transverse process.

Question 3

What is the primary reason ropivacaine is considered safer than racemic bupivacaine in regional anesthesia?

Accepted Answer

Less cardiac toxicity due to its pure S-enantiomer configuration

Answer

Ropivacaine is a pure S-enantiomer with reduced cardiac toxicity compared to racemic bupivacaine because of stereospecific sodium channel binding.

Question 4

Which nerve roots form the sciatic nerve, making them the target of a popliteal sciatic nerve block for foot surgery?

Accepted Answer

L4-S3

Answer

The sciatic nerve is formed from L4-S3 roots; the popliteal sciatic block targets this nerve just above the popliteal fossa for foot and ankle procedures.

Question 5

Which ultrasound safety technique is MOST effective at reducing the risk of intravascular injection during nerve blocks?

Accepted Answer

All of the above combined

Answer

Combining color Doppler imaging, pre-injection aspiration, and small-bore needles together provides the greatest reduction in intravascular injection risk.

(ABA) American Board of Anesthesiology Practice Test

(ABA) American Board of Anesthesiology Practice Test

ABA ABA Regional Anesthesia and Pain Management 2