NBCRNA Regional Anesthesia 2

Question 1

The adductor canal block (subsartorial block) provides primarily what type of analgesia for knee surgery?

Accepted Answer

Sensory analgesia with preserved quadriceps strength

Answer

The adductor canal contains the saphenous nerve and articular branches; blocking here provides medial knee and anterior thigh analgesia while largely preserving quadriceps motor function for early mobilization.

Question 2

LAST (Local Anesthetic Systemic Toxicity) initial CNS symptoms include which finding?

Accepted Answer

Perioral numbness and metallic taste, progressing to seizures

Answer

LAST typically presents with CNS excitation (perioral tingling, tinnitus, metallic taste, restlessness, seizures) before CNS depression and cardiovascular collapse.

Question 3

The treatment of choice for severe LAST with cardiovascular collapse is:

Accepted Answer

Lipid emulsion therapy (Intralipid 20%)

Answer

Lipid emulsion therapy acts as a 'lipid sink,' sequestering the highly lipophilic local anesthetic from cardiac sodium channels and reversing cardiovascular toxicity.

Question 4

In ultrasound-guided nerve block, the in-plane technique means the needle is advanced:

Accepted Answer

Parallel to the ultrasound beam so the entire shaft is visualized

Answer

In-plane needle advancement inserts the needle parallel to the ultrasound beam in the long axis, allowing visualization of the entire needle shaft and tip throughout the procedure.

Question 5

A transversus abdominis plane (TAP) block targets which anatomical space to provide abdominal wall analgesia?

Accepted Answer

Fascial plane between internal oblique and transversus abdominis muscles

Answer

The TAP block deposits local anesthetic in the neurofascial plane between the internal oblique and transversus abdominis, blocking T10–L1 intercostal nerves supplying the anterior abdominal wall.

NBCRNA - National Board of Certification and Recertification for Nurse Anesthetists Practice Test

NBCRNA - National Board of Certification and Recertification for Nurse Anesthetists Practice Test

NBCRNA Regional Anesthesia 2