ABA Pain Medicine Certification
Examination Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026
1. Which structure is primarily responsible for transmitting nociceptive
| | | | | | |
signals from the periphery to the spinal cord?
| | | | | | | |
A. Dorsal horn interneurons
| |
B. Ventral root motor fibers
| | |
C. Primary afferent nociceptors
| |
D. Sympathetic efferent fibers | |
Correct Answer: Primary afferent nociceptors
| | | |
Primary afferent nociceptors detect noxious stimuli and transmit pain
| | | | | | | |
| signals from peripheral tissues to the dorsal horn of the spinal cord.
| | | | | | | | | | |
, 2. Which neurotransmitter is most associated with chronic pain
| | | | | | |
|sensitization in the dorsal horn? | | | |
A. Acetylcholine
B. Dopamine
C. Substance P |
D. GABA
Correct Answer: Substance P
| | |
Substance P contributes to central sensitization by enhancing excitatory
| | | | | | | |
| transmission in the dorsal horn. | | | |
3. Wind-up phenomenon in pain physiology refers to:
| | | | | |
A. Peripheral nerve regeneration | |
B. Decreased pain perception over time | | | |
C. Progressive increase in dorsal horn neuron firing| | | | | |
D. Activation of descending inhibitory pathways
| | | |
Correct Answer: Progressive increase in dorsal horn neuron firing
| | | | | | | |
Wind-up is caused by repetitive C-fiber stimulation leading to increasing
| | | | | | | | |
| spinal neuron excitability.
| |
4. Which pain type is best described as burning, tingling, or electric-like?
| | | | | | | | | |
A. Nociceptive pain |
B. Visceral pain |
, C. Psychogenic pain |
D. Neuropathic pain |
Correct Answer: Neuropathic pain
| | |
Neuropathic pain results from nerve injury and is classically described as
| | | | | | | | | |
| burning or electric sensations.
| | |
5. Which receptor is the primary target of opioid analgesics?
| | | | | | | |
A. NMDA receptor |
B. Alpha-2 receptor |
C. Mu-opioid receptor |
D. GABA-B receptor |
Correct Answer: Mu-opioid receptor
| | |
Opioids exert analgesia mainly through mu-opioid receptor activation in
| | | | | | | |
| the central nervous system.
| | |
6. Which medication is most effective for trigeminal neuralgia?
| | | | | | |
A. Amitriptyline
B. Gabapentin
C. Carbamazepine
D. Duloxetine
, Correct Answer: Carbamazepine
| |
Carbamazepine is first-line therapy for trigeminal neuralgia due to its
| | | | | | | | |
| sodium channel–blocking effects.
| |
7. The mechanism of action of gabapentinoids involves:
| | | | | |
A. Sodium channel blockade | |
B. NMDA antagonism |
C. Calcium channel modulation | |
D. Opioid receptor activation | |
Correct Answer: Calcium channel modulation
| | | |
Gabapentinoids bind to the alpha-2-delta subunit of voltage-gated calcium
| | | | | | | |
| channels, reducing excitatory neurotransmitter release.
| | | |
8. Which pain assessment tool is specifically validated for neuropathic
| | | | | | | |
pain?
|
A. Visual Analog Scale | |
B. Numeric Rating Scale | |
C. DN4 questionnaire |
D. Wong-Baker Faces Scale | |
Correct Answer: DN4 questionnaire
| | | |
The DN4 questionnaire helps differentiate neuropathic from nociceptive
| | | | | | |
pain.
Examination Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026
1. Which structure is primarily responsible for transmitting nociceptive
| | | | | | |
signals from the periphery to the spinal cord?
| | | | | | | |
A. Dorsal horn interneurons
| |
B. Ventral root motor fibers
| | |
C. Primary afferent nociceptors
| |
D. Sympathetic efferent fibers | |
Correct Answer: Primary afferent nociceptors
| | | |
Primary afferent nociceptors detect noxious stimuli and transmit pain
| | | | | | | |
| signals from peripheral tissues to the dorsal horn of the spinal cord.
| | | | | | | | | | |
, 2. Which neurotransmitter is most associated with chronic pain
| | | | | | |
|sensitization in the dorsal horn? | | | |
A. Acetylcholine
B. Dopamine
C. Substance P |
D. GABA
Correct Answer: Substance P
| | |
Substance P contributes to central sensitization by enhancing excitatory
| | | | | | | |
| transmission in the dorsal horn. | | | |
3. Wind-up phenomenon in pain physiology refers to:
| | | | | |
A. Peripheral nerve regeneration | |
B. Decreased pain perception over time | | | |
C. Progressive increase in dorsal horn neuron firing| | | | | |
D. Activation of descending inhibitory pathways
| | | |
Correct Answer: Progressive increase in dorsal horn neuron firing
| | | | | | | |
Wind-up is caused by repetitive C-fiber stimulation leading to increasing
| | | | | | | | |
| spinal neuron excitability.
| |
4. Which pain type is best described as burning, tingling, or electric-like?
| | | | | | | | | |
A. Nociceptive pain |
B. Visceral pain |
, C. Psychogenic pain |
D. Neuropathic pain |
Correct Answer: Neuropathic pain
| | |
Neuropathic pain results from nerve injury and is classically described as
| | | | | | | | | |
| burning or electric sensations.
| | |
5. Which receptor is the primary target of opioid analgesics?
| | | | | | | |
A. NMDA receptor |
B. Alpha-2 receptor |
C. Mu-opioid receptor |
D. GABA-B receptor |
Correct Answer: Mu-opioid receptor
| | |
Opioids exert analgesia mainly through mu-opioid receptor activation in
| | | | | | | |
| the central nervous system.
| | |
6. Which medication is most effective for trigeminal neuralgia?
| | | | | | |
A. Amitriptyline
B. Gabapentin
C. Carbamazepine
D. Duloxetine
, Correct Answer: Carbamazepine
| |
Carbamazepine is first-line therapy for trigeminal neuralgia due to its
| | | | | | | | |
| sodium channel–blocking effects.
| |
7. The mechanism of action of gabapentinoids involves:
| | | | | |
A. Sodium channel blockade | |
B. NMDA antagonism |
C. Calcium channel modulation | |
D. Opioid receptor activation | |
Correct Answer: Calcium channel modulation
| | | |
Gabapentinoids bind to the alpha-2-delta subunit of voltage-gated calcium
| | | | | | | |
| channels, reducing excitatory neurotransmitter release.
| | | |
8. Which pain assessment tool is specifically validated for neuropathic
| | | | | | | |
pain?
|
A. Visual Analog Scale | |
B. Numeric Rating Scale | |
C. DN4 questionnaire |
D. Wong-Baker Faces Scale | |
Correct Answer: DN4 questionnaire
| | | |
The DN4 questionnaire helps differentiate neuropathic from nociceptive
| | | | | | |
pain.
