Name That Block
In this block, one terminal branch is often missed because it exits the sheath early and lies within the coracobrachialis muscle. BONUS what terminal branch
What is the axillary block (musculocutaneous nerve)
Persistent sensation in the medial forearm after a brachial plexus block suggests incomplete blockade of fibers from these nerve roots.
What are C8–T1
Using the NAVEL mnemonic to identify structures lateral to medial in the femoral triangle helps guide placement of this peripheral nerve block.
What is the femoral nerve block
This purely sensory block typically requires only a small volume of local anesthetic compared to other lower extremity blocks. BONUS how many mLs?
What is the lateral femoral cutaneous nerve block (3-5mL)
A common limitation of interscalene block is incomplete blockade of this portion of the brachial plexus, leading to sparing of the medial forearm and hand. BONUS which specific terminal branch
What is inferior trunk? (ulnar distribution)
This hip analgesia block does not target a single named nerve and is identified by a “ski slope” ultrasound appearance. BONUS what does PENG stand for
What is the PENG block (Pericapsular Nerve Group)
Sensation over the medial aspect of the lower leg and ankle is primarily supplied by this nerve.
What is the saphenous nerve
In an obturator nerve block, the anterior branch is found between these two muscles. BONUS posterior branch
What are the adductor longus and adductor brevis. (P- Adductor brevis & Adductor magnus)
This lower extremity block typically requires large volumes of local anesthetic, to achieve adequate spread within a fascial plane. BONUS what is the doseage range
fascia iliaca block 30–40 mL
Vascular puncture during this brachial plexus block can be difficult to manage because the depth of the target makes direct compression challenging.
What is the infraclavicular block
This block targets the space between the popliteal artery and femur.
What is the IPACK block
At the level of the popliteal fossa, this nerve separates into these two components that supply the posterior leg and dorsum of the foot.
What are the tibial and common peroneal nerves
Within this canal, the target nerve is identified lateral to a pulsatile structure and deep to a thin, triangular muscle forming the roof.
What is the sartorius muscle
In blocks of terminal nerves, avoidance of this agent helps reduce the risk of ischemic complications.
What is epinephrine
Injury to this nerve results in loss of dorsiflexion and eversion of the foot, leading to a characteristic gait abnormality.
What is the common peroneal nerve
This block for joint analgesia requires needle placement at several periosteal sites to interrupt sensory innervation without significant motor blockade. BONUS how many mLs?
What is the genicular nerve block (4-5/site)
Dense anesthesia from a supraclavicular approach is achieved because local anesthetic surrounds this highly condensed portion of the plexus.
What are the trunks/divisions
Neural targets in this block are arranged around this vascular structure and are identified based on their positional relationship (lateral, posterior, medial).
What is the axillary artery
Achieving a circumferential or “horseshoe” pattern of spread around a central vascular structure often requires higher volumes of local anesthetic in this brachial plexus approach.
What is the infraclavicular block
A patient with worsening limb tightness and pain on passive stretch experiences delayed diagnosis due to analgesia from this lower extremity block.
What is the sciatic block
Improved tourniquet tolerance is achieved at this level of the brachial plexus. BONUS what part of plexus
What is the infraclavicular block (cords)
This nerve is least likely to result in intravascular injection during ankle block due to its relative isolation from vascular structures. BONUS what are the 5 nerves
What is the superficial peroneal nerve (tibial, deep peroneal, sural, saphenous)
Identification of a vessel within the deltopectoral groove serves as an entry point for performing this peripheral nerve block.
What is the axillary block
Spread of local anesthetic to the stellate ganglion may produce this constellation of ocular and autonomic findings. BONUS what blocks could cause this
What is Horner syndrome (Interscalene, Supraclavicular)
This nerve, originating from the superior trunk, may be spared in supraclavicular block, contributing to inadequate coverage of the posterior shoulder
What is the suprascapular nerve