Regional Anesthesia

Which block most reliably produces hemidiaphragmatic paresis and should be avoided in severe pulmonary disease?

Which complication is most characteristic of a supraclavicular brachial plexus block?

Which nerve is commonly spared by an axillary brachial plexus block and often requires separate infiltration?

For shoulder arthroscopy, which block provides the best analgesia?

Which ultrasound finding best identifies the interscalene level at C6?

Which approach targets the brachial plexus at the level of trunks/divisions and anesthetizes the entire upper limb quickly?

For hand surgery with postoperative motor preservation, which distal strategy is preferred?

Which block best preserves quadriceps strength for early ambulation after knee surgery?

Which nerves are typically targeted for ankle block (5 nerves)?

Which is **contraindicated** for a Bier block (IVRA)?

What is the recommended first-line therapy for suspected local anesthetic systemic toxicity (LAST)?

Which factor most increases LAST risk for a given dose?

For neuraxial anesthesia in a patient on **prophylactic LMWH**, the minimum interval before needle placement should be:

What dermatomal level is required for cesarean delivery under neuraxial anesthesia?

Classic presentation of a **high spinal** after intended epidural bolus includes:

Best initial management of a suspected high spinal with hypotension and bradycardia?

Which test dose helps detect intravascular or intrathecal placement of an epidural catheter?

Which statement about spinal vs epidural anesthesia is TRUE?

Most common cause of **post-dural puncture headache (PDPH)**?

Definitive therapy for severe PDPH when conservative measures fail:

Which additive to neuraxial local anesthetic most commonly causes pruritus?

Which adjuvant most consistently prolongs peripheral nerve block duration (off-label perineural use)?

For ultrasound-guided femoral nerve block, the femoral nerve lies:

Which block targets the lateral femoral cutaneous nerve at the ASIS region?

Which two branches are targeted in an obturator nerve block for adductor spasm relief?

Which lower-limb nerve is **not** a branch of the sciatic?

What is the principal risk sign when using nerve stimulation suggesting intraneural needle position?

Which TAP block plane is correct?

Which block most effectively covers lateral thoracic wall and axilla (breast/axillary surgery)?

Which statement about erector spinae plane (ESP) block is true?

Which neuraxial effect explains hypotension after spinal anesthesia?

Which local anesthetic property correlates best with **duration** of peripheral nerve block?

Which technique provides unilateral thoracic analgesia with less hypotension than epidural?

Which **absolute** contraindication applies to neuraxial anesthesia?

Optimal timing for epidural catheter removal in patients on prophylactic once-daily LMWH?

Which block most risks **Horner’s syndrome** (ptosis, miosis, anhidrosis)?

For popliteal sciatic block, the tibial and common peroneal nerves are typically seen:

Best local anesthetic choice for **rapid-onset, short-duration** forearm block in ambulatory surgery?

Which precaution reduces risk of chlorhexidine neurotoxicity in neuraxial procedures?

Which statement about PECs blocks is correct?

Which local anesthetic has the highest cardiotoxicity risk in inadvertent intravascular injection?

Which adjuvant added to peripheral nerve block most consistently prolongs analgesia (off-label perineural use)?

Which change most speeds onset of amide local anesthetics?

What is the most reliable early sign of epidural hematoma after neuraxial block?

Which antiplatelet medication requires the longest discontinuation before neuraxial procedures?

Appropriate timing for neuraxial needle placement after **therapeutic** LMWH?

When can an epidural catheter be removed in a patient receiving once-daily **prophylactic** LMWH?

For IV regional anesthesia (Bier block), the recommended local anesthetic is:

Which maneuver best treats the Bezold–Jarisch reflex (bradycardia/hypotension) during shoulder arthroscopy in sitting position?

Which statement about **baricity** of intrathecal bupivacaine is correct?

Which spinal needle design lowers PDPH risk?

Best immediate management of suspected LAST with seizures and hypotension?

Which factor increases intrathecal spread of local anesthetic in pregnancy?

Which lower limb block best treats tourniquet pain during ankle surgery under ankle block?

Which nerve lies **lateral** to the femoral artery under the fascia iliaca at the inguinal crease?

Which block is preferred for dense anesthesia of the hand/forearm with tourniquet tolerance at the arm?

Most appropriate first-line treatment for **intravascular test-dose** response (HR rise) during epidural placement?

Which symptom set suggests **high spinal** after epidural top-up?

Which block most commonly causes Horner’s syndrome (ptosis, miosis, anhidrosis)?

Which statement about **continuous peripheral nerve catheters** is TRUE?

Appropriate epidural test dose to detect **intrathecal** placement?

Best block to preserve quadriceps strength after TKA while providing medial knee analgesia?

Which statement about **caudal anesthesia in pediatrics** is correct?

What is the safest immediate action after suspected **subdural** injection via epidural catheter (patchy high sensory block with minimal motor)?

Which block targets lateral chest wall analgesia for breast/axillary surgery?

Which **ultrasound sign** best indicates intraneural injection during PNB?

Recommended initial tourniquet pressure for upper limb Bier block in adults?

Which local anesthetic is most associated with transient neurologic symptoms (TNS) after spinal anesthesia?

What is the **maximum recommended dose** of bupivacaine for peripheral infiltration (no epi)?

Which block is **contraindicated** in severe preexisting respiratory compromise due to near-universal phrenic paresis?

Appropriate immediate step for persistent paresthesia on injection during PNB?

Which combination optimizes analgesia after TKA while preserving motor function?

Which is TRUE regarding epidural analgesia in labor?

For suspected **epidural abscess** after catheter use, the diagnostic test of choice is:

Which block most likely requires **separate intercostobrachial** nerve supplementation for tourniquet pain?

In a patient receiving **IV heparin infusion**, timing for neuraxial needle placement is:

Which LA property best predicts **potency** at the nerve membrane?

During a continuous interscalene catheter infusion, the patient develops dyspnea at rest. First best action?

Which nerve is most at risk of injury with **lithotomy** positioning during neuraxial anesthesia?

For chronic pain after thoracotomy when epidural is contraindicated, the best unilateral alternative is:

In ultrasound-guided infraclavicular block, which structure typically lies at the 6 o’clock position relative to the axillary artery?

What is the most characteristic procedural complication of intercostal nerve blocks?

Which block most specifically targets posterior knee capsule analgesia during TKA?

What is the typical **maximum** dose of ropivacaine for infiltration/peripheral block (without epinephrine)?

In which situation is an epinephrine-containing epidural test dose **least** reliable for detecting intravascular injection?

Using a cutting (Quincke) spinal needle, which maneuver reduces PDPH risk?

Which historical practice was associated with cauda equina syndrome after spinal anesthesia?

In an adult Bier block, the **minimum** tourniquet time before deflation should be:

Which neuraxial opioid provides the longest postoperative analgesia but carries risk of delayed respiratory depression?

Minimum recommended interval before neuraxial puncture after last dose of **rivaroxaban** (normal renal function)?

After **epidural catheter removal** in a patient on once-daily prophylactic LMWH, when may the next LMWH dose be given?

Which nerve is most often **spared** by an interscalene block?

Which nerve is **least** reliably anesthetized by a fascia iliaca block?

What is the safest general principle regarding epinephrine use in **digital** blocks?

Which is the **earliest** clinical sign of inadvertent intravascular local anesthetic injection?

During nerve stim–guided peripheral block, which current most appropriately indicates safe needle proximity before injection?