Knowledge assessment – Infraclavicular brachial plexus block

Which is the goal when performing an infraclavicular brachial plexus block?

When performing an infraclavicular block, it is necessary to:

Identify the fascia of the pectoralis minor muscle and axillary artery as the most important ultrasonographic landmarks
Aspirate intermittently every 5 mL to decrease the risk of intravascular injection.
It's advised to use nerve stimulator and injection pressure monitoring during block performance.
All answers are correct

Why is the abduction of the arm to 90 degrees significant during patient positioning?

It allows for more comfortable placement of the ultrasound
This position enables the chest wall and pleura to be located
This maneuver raises the clavicle, and reduces the depth from the skin to the plexus, improving visualization of the muscles and the cords
If the arm is not abducted the risk for pneumothorax increases

How should an infraclavicular block be performed?

Advancing the needle in-plane to just above the axillary artery, between the medial and lateral cords, to inject the local anesthetic.Edit
Advancing the needle under the posterior aspect of the pectoralis major muscle and injecting 20-30mL of local anesthetic in this fascial plane.
The needle is aimed toward the posterior aspect of the axillary artery, passing through the pectoralis major and minor muscles.
The needle is inserted out-of-plane with the insertion point just inferior to the clavicle and aimed between the axillary artery and vein. Edit

What statement is correct regarding infraclavicular brachial plexus block?

Compendium of Regional Anesthesia