ABA ABA Regional & Neuraxial Anesthesia

Question 1

A post-dural puncture headache (PDPH) is BEST characterized by which feature?

Accepted Answer

Frontal/occipital pain worsened upright and relieved supine

Answer

Occipital pain unaffected by position

Answer

Unilateral throbbing pain with photophobia only

Answer

Constant headache worsened by lying flat

Question 2

The epidural blood patch is considered the DEFINITIVE treatment for PDPH. Its mechanism of action is:

Accepted Answer

Sealing the dural leak with a clot and transiently increasing epidural pressure

Answer

Increasing CSF production

Answer

Diluting the CSF to reduce meningeal inflammation

Answer

Reducing subarachnoid pressure through venous compression

Question 3

During spinal anesthesia, a 'total spinal' occurs. The MOST immediate life-threatening consequence is:

Accepted Answer

Apnea and cardiovascular collapse from high cervical blockade

Answer

Urinary retention

Answer

Nausea and vomiting from vagal activation

Answer

Shivering from hypothermia

Question 4

Which factor INCREASES the spread of spinal anesthesia?

Accepted Answer

Using hyperbaric solution in Trendelenburg position

Answer

Using hypobaric solution in Trendelenburg position

Answer

Increased patient height

Answer

Decreased baricity of the solution

Question 5

The recommended interspace for spinal anesthesia in adults to avoid spinal cord injury is:

Accepted Answer

L3-L4 or L4-L5

Answer

L1-L2

Answer

T12-L1

Answer

L2-L3 only

Question 6

Local anesthetic systemic toxicity (LAST) involving the CNS typically presents in which ORDER?

Accepted Answer

Tinnitus/circumoral numbness → seizures → cardiovascular collapse

Answer

Seizures → tinnitus/circumoral numbness → cardiovascular collapse

Answer

Cardiovascular collapse → tinnitus → seizures

Answer

Unconsciousness → tinnitus → seizures