Update 2026 | Exam Prep | Graded A+
1. Describe how A-beta nerve fibers contribute to the perception of pain in the
context of chronic pain conditions.
A-beta fibers transmit only temperature sensations.
A-beta fibers can inhibit pain transmission by providing non-painful
sensory input.
A-beta fibers have no role in pain perception.
A-beta fibers are solely responsible for transmitting sharp pain
sensations.
2. If a patient experiences diarrhea after receiving a Celiac Plexus Block, what
physiological mechanism might explain this side effect?
Increased sympathetic nerve activity resulting in constipation.
Stimulation of parasympathetic nerves causing decreased motility.
Direct irritation of the gastrointestinal tract by the anesthetic.
Inhibition of sympathetic nerve activity leading to increased
gastrointestinal motility.
3. In a clinical scenario where a patient presents with early signs of CRPS I, what
should be the immediate course of action to optimize treatment outcomes?
Wait for symptoms to worsen before starting treatment.
Refer the patient to a specialist without initial intervention.
Focus solely on pain medication without further assessment.
Implement early recognition and intervention strategies.
,4. How do large nerve fibers (A-beta fibers) influence the gate control
mechanism?
They block the transmission of pain signals.
They activate inhibitory interneurons to close the gate and reduce
the perception of pain.
They enhance the transmission of pain signals.
They have no effect on the gate control mechanism.
5. What is the typical onset period for phantom limb pain after an amputation?
Immediately after surgery
Years after surgery
Days to weeks after surgery
Months after surgery
6. Describe how myofascial pain syndrome can affect muscle function beyond
just causing pain.
Myofascial pain syndrome only causes pain without affecting muscle
function.
Myofascial pain syndrome has no impact on muscle function.
Myofascial pain syndrome improves muscle function over time.
Myofascial pain syndrome can lead to muscle tightness and
reduced range of motion.
7. In the pain transmission pathway, which structure do A-delta and C-fibers
primarily synapse with?
Dorsal horn of the spinal cord
, Thalamus
Peripheral nerves
Cerebral cortex
8. In a clinical scenario where a patient with CRPS is not responding to
conservative treatments, which approach to the Lumbar Sympathetic Block
would you recommend and why?
Ultrasound guidance, as it is the fastest method available.
No guidance, as it is unnecessary for experienced practitioners.
CT guidance, as it is less commonly used and may provide better
results.
Fluoroscopic guidance, as it provides precise needle placement and
reduces the risk of complications.
9. What is the primary medication commonly prescribed for Trigeminal
Neuralgia?
Aspirin
Acetaminophen
Ibuprofen
Carbamazepine
10. If a patient presents with localized pain and tenderness in a muscle, how
would you differentiate myofascial pain syndrome from other pain
syndromes?
By assessing for systemic symptoms.
By evaluating for nerve involvement.
By identifying the presence of trigger points.
, By performing imaging studies.
11. Describe the factors that may contribute to symptom relief in patients
experiencing phantom limb pain.
Factors such as mirror therapy, medication, and nerve blocks may
contribute to symptom relief.
Only medication is effective for symptom relief.
There are no known factors that provide symptom relief.
Symptom relief is solely dependent on psychological support.
12. In a patient diagnosed with Complex Regional Pain Syndrome (CRPS), which
approach would be most appropriate for assessing the effectiveness of a
sympathetic block?
Using thermography to monitor changes in skin temperature.
Performing an MRI to assess brain activity.
Conducting a CT scan to visualize nerve structures.
Utilizing ultrasound to measure blood flow.
13. All block sympathetic response EXCEPT
Muscarinics
Sympatholytics
Beta-Blockers
Antiadrenergics
14. What physiological response does the Sympathogalvanic Reflex involve?
An increase in heart rate due to parasympathetic activation.