MAC Regional Anesthesia & Pain Management

Question 1

Which nerve block provides the broadest analgesia for hip replacement surgery?

Accepted Answer

Fascia iliaca compartment block

Answer

Femoral nerve block

Answer

Sciatic nerve block only

Answer

Saphenous nerve block

Question 2

What is the maximum safe dose of plain bupivacaine for peripheral nerve block in an adult?

Accepted Answer

2.5 mg/kg

Answer

3 mg/kg

Answer

4 mg/kg

Answer

7 mg/kg

Question 3

What is the first-line treatment for local anesthetic systemic toxicity (LAST)?

Accepted Answer

Intralipid 20% emulsion IV

Answer

Epinephrine 1 mg IV bolus

Answer

Atropine 0.5 mg IV

Answer

Sodium bicarbonate IV

Question 4

Which structure provides the loss of resistance during epidural needle placement?

Accepted Answer

Ligamentum flavum

Answer

Dura mater

Answer

Supraspinous ligament

Answer

Posterior longitudinal ligament

Question 5

A spinal block that ascends to T4 may block which critical physiologic response?

Accepted Answer

Cardiac accelerator fibers

Answer

Knee-jerk reflex

Answer

Pupillary reflex

Answer

Gag reflex

Question 6

What is the primary advantage of ultrasound guidance for peripheral nerve blocks?

Accepted Answer

Reduced local anesthetic volume and improved block accuracy

Answer

Faster procedure time always

Answer

Eliminates need for sterile technique

Answer

Allows full patient cooperation without sedation