Exam 1 Review Questions PDF

1. **What is the main challenge for providers to become proficient when learning ultrasound-guided regional anesthesia?**\ a) Identifying the needle tip\ b) Identifying the nerve\ c) Adjusting the ultrasound frequency\ d) Maintaining sterility\ **✔️ Answer: a) Identifying th...

1. **What is the main challenge for providers to become proficient when learning ultrasound-guided regional anesthesia?**\ a) Identifying the needle tip\ b) Identifying the nerve\ c) Adjusting the ultrasound frequency\ d) Maintaining sterility\ **✔️ Answer: a) Identifying the needle tip** 2. **What nerve is most missed with an axillary block?**\ a) Radial nerve\ b) Median nerve\ c) Ulnar nerve\ d) Musculocutaneous nerve\ **✔️ Answer: d) Musculocutaneous nerve** 3. **Does the axillary block affect the axillary nerve?**\ a) Yes\ b) No\ **✔️ Answer: b) No** 4. **Which brachial plexus approach will cause ipsilateral diaphragmatic paralysis?**\ a) Supraclavicular\ b) Infraclavicular\ c) Interscalene\ d) Axillary\ **✔️ Answer: c) Interscalene** 5. **Why do we use low-frequency ultrasound to penetrate deep tissues?**\ a) It provides higher resolution\ b) It allows for deeper penetration\ c) It improves contrast\ d) It prevents nerve damage\ **✔️ Answer: b) It allows for deeper penetration** 6. **Why do deep tissues have less resolution when viewed on ultrasound?**\ a) High-frequency waves do not penetrate deep\ b) Low-frequency waves have lower resolution\ c) Deep tissues scatter sound waves\ d) All of the above\ **✔️ Answer: d) All of the above** 7. **Why do nerve trunks appear hypoechoic on ultrasound when more proximal?**\ a) Due to higher fat content\ b) Due to increased water content of the nerve bundles\ c) Due to a thicker perineurium\ d) Due to decreased blood supply\ **✔️ Answer: b) Due to increased water content of the nerve bundles** 8. **What two nerves are extensions of the sciatic nerve that bifurcate at the level of the posterior knee?**\ a) Tibial and common peroneal nerves\ b) Femoral and sciatic nerves\ c) Obturator and femoral nerves\ d) Radial and ulnar nerves\ **✔️ Answer: a) Tibial and common peroneal nerves** 9. **What nerve roots form the sciatic nerve?**\ a) L4, L5, S1-S3\ b) L1-L3\ c) C5-C7\ d) C5-T1\ **✔️ Answer: a) L4, L5, S1-S3** 10. **What nerve roots form the brachial plexus?**\ a) C5-C8, T1\ b) L2-L4\ c) L4-S1\ d) T2-T4\ **✔️ Answer: a) C5-C8, T1** 11. **What parts of the brachial plexus do you see during an interscalene block?**\ a) Roots\ b) Trunks\ c) Cords\ d) Branches\ **✔️ Answer: a) Roots** 12. **What parts of the brachial plexus do you see during a supraclavicular block?**\ a) Roots\ b) Trunks\ c) Cords\ d) Branches\ **✔️ Answer: b) Trunks** 13. **What parts of the brachial plexus do you see during an infraclavicular block?**\ a) Roots\ b) Trunks\ c) Cords\ d) Branches\ **✔️ Answer: c) Cords** 14. **What parts of the brachial plexus do you see during an axillary block?**\ a) Roots\ b) Trunks\ c) Cords\ d) Branches\ **✔️ Answer: d) Branches** 15. **What are the terminal branches of the brachial plexus?**\ a) Axillary, medial brachial cutaneous, musculocutaneous, median, ulnar, radial\ b) Femoral, obturator, tibial, sural\ c) Radial, axillary, common peroneal, sciatic\ d) Saphenous, axillary, musculocutaneous\ **✔️ Answer: a) Axillary, medial brachial cutaneous, musculocutaneous, median, ulnar, radial** 16. **Which nerve roots comprise the lateral femoral cutaneous nerve?**\ a) L2--3\ b) L3--4\ c) L4--S1\ d) L1--L3\ **✔️ Answer: a) L2--3** 17. **Which nerve roots comprise the femoral nerve?**\ a) L1--L3\ b) L2--4\ c) L3--5\ d) L4--S1\ **✔️ Answer: b) L2--4** 18. **What is the saphenous nerve?**\ a) The terminal sensory branch of the femoral nerve\ b) A branch of the common peroneal nerve\ c) A branch of the tibial nerve\ d) A motor branch of the femoral nerve\ **✔️ Answer: a) The terminal sensory branch of the femoral nerve** 19. **Which nerve provides motor function to the deltoid and teres minor muscles?**\ a) Ulnar nerve\ b) Radial nerve\ c) Axillary nerve\ d) Median nerve\ **✔️ Answer: c) Axillary nerve** 20. **Which nerve supplies sensation to the lateral shoulder?**\ a) Axillary nerve\ b) Radial nerve\ c) Ulnar nerve\ d) Musculocutaneous nerve\ **✔️ Answer: a) Axillary nerve** 21. **Which nerve is responsible for elbow flexion and supplies sensation to the lateral forearm?**\ a) Musculocutaneous nerve\ b) Median nerve\ c) Ulnar nerve\ d) Radial nerve\ **✔️ Answer: a) Musculocutaneous nerve** 22. **Which nerve provides sensory innervation to the medial forearm?**\ a) Medial brachial cutaneous nerve\ b) Ulnar nerve\ c) Radial nerve\ d) Median nerve\ **✔️ Answer: a) Medial brachial cutaneous nerve** 23. **Which nerve is responsible for thumb opposition and flexion?**\ a) Median nerve\ b) Ulnar nerve\ c) Radial nerve\ d) Axillary nerve\ **✔️ Answer: a) Median nerve** 24. **Which nerve provides sensation to the palmar aspect of the first three and a half digits?**\ a) Median nerve\ b) Radial nerve\ c) Ulnar nerve\ d) Axillary nerve\ **✔️ Answer: a) Median nerve** 25. **Which nerve supplies motor function to most of the intrinsic hand muscles, except the thenar muscles?**\ a) Ulnar nerve\ b) Median nerve\ c) Radial nerve\ d) Musculocutaneous nerve\ **✔️ Answer: a) Ulnar nerve** 26. **Which nerve provides sensation to the medial one and a half fingers?**\ a) Ulnar nerve\ b) Radial nerve\ c) Median nerve\ d) Musculocutaneous nerve\ **✔️ Answer: a) Ulnar nerve** 27. **Which nerve controls wrist and finger extension?**\ a) Radial nerve\ b) Median nerve\ c) Ulnar nerve\ d) Axillary nerve\ **✔️ Answer: a) Radial nerve** 28. **Which nerve provides sensory innervation to the dorsum of the hand on the radial side?**\ a) Radial nerve\ b) Ulnar nerve\ c) Median nerve\ d) Axillary nerve\ **✔️ Answer: a) Radial nerve** 29. **Which nerve supplies motor function to the quadriceps muscle?**\ a) Femoral nerve\ b) Obturator nerve\ c) Tibial nerve\ d) Common peroneal nerve\ **✔️ Answer: a) Femoral nerve** 30. **Which nerve provides sensory innervation to the anterior thigh and medial leg?**\ a) Femoral nerve\ b) Obturator nerve\ c) Tibial nerve\ d) Common peroneal nerve\ **✔️ Answer: a) Femoral nerve** 31. **Which nerve is responsible for hip adduction?**\ a) Femoral nerve\ b) Obturator nerve\ c) Tibial nerve\ d) Common peroneal nerve\ **✔️ Answer: b) Obturator nerve** 32. **Which nerve provides sensory innervation to the medial thigh?**\ a) Femoral nerve\ b) Tibial nerve\ c) Obturator nerve\ d) Common peroneal nerve\ **✔️ Answer: c) Obturator nerve** 33. **Which nerve provides sensory innervation to the lateral thigh but no motor function?**\ a) Femoral nerve\ b) Tibial nerve\ c) Lateral femoral cutaneous nerve\ d) Common peroneal nerve\ **✔️ Answer: c) Lateral femoral cutaneous nerve** 34. **Which nerve provides motor function to the hamstrings and intrinsic foot muscles?**\ a) Tibial nerve\ b) Femoral nerve\ c) Common peroneal nerve\ d) Sural nerve\ **✔️ Answer: a) Tibial nerve** 35. **Which nerve provides sensory innervation to the plantar surface of the foot?**\ a) Tibial nerve\ b) Sural nerve\ c) Common peroneal nerve\ d) Femoral nerve\ **✔️ Answer: a) Tibial nerve** 36. **Which nerve provides motor function to the short head of the biceps femoris?**\ a) Tibial nerve\ b) Femoral nerve\ c) Common peroneal nerve\ d) Obturator nerve\ **✔️ Answer: c) Common peroneal nerve** 37. **Which nerve is responsible for dorsiflexion of the foot?**\ a) Femoral nerve\ b) Tibial nerve\ c) Common peroneal nerve\ d) Sural nerve\ **✔️ Answer: c) Common peroneal nerve** 38. **Which nerve provides sensory innervation to the lateral foot and posterior calf?**\ a) Sural nerve\ b) Tibial nerve\ c) Common peroneal nerve\ d) Femoral nerve\ **✔️ Answer: a) Sural nerve**