Upper and Lower Extremity SSEP
Exam Questions & Answers (Grade
A+)
SSEP is defined as ____ -
correct answer ✅Somatosensory Evoked Potential
What nerve is stimulated for upper extremity SSEP? -
correct answer ✅median or ulnar nerve
What nerve is stimulated for lower extremity SSEP? -
correct answer ✅tibial or peroneal nerve
SSEP evaluates _______ -
correct answer ✅The nerve pathway from the peripheral nerve
through the spine to the somatosensory area of the brain
The most commonly used stimulating electrode is a ____________
-
correct answer ✅a. bar electrode
By the age of _____ SSEP waveforms should be similar to adults -
correct answer ✅5
,Upper and Lower Extremity SSEP
Exam Questions & Answers (Grade
A+)
This happens when patients have a lost of vibration and position
sensation and normal pain and temperature sensation -
correct answer ✅Friedreich's ataxia-
Three types of sensory fibers? -
correct answer ✅1. pain and temp
2. touch and pressure
3. vibration and position
The cathode electrode is (negative/positive)? -
correct answer ✅Negative pole
The anode electrode is (negative/positive)? -
correct answer ✅Positive pole
Stimulus electrodes should be placed where the muscle twitch is
elicited with the (smallest/highest) stimulus intensity? -
correct answer ✅Smallest
, Upper and Lower Extremity SSEP
Exam Questions & Answers (Grade
A+)
What is the stimulus rate for recording SSEP within 50 ms after the
stimulus? -
correct answer ✅3-4 Hz
What is the frequency bandwidth for short-latency SSEPs? -
correct answer ✅5 to 30 Hz for LFF
1 to 3 k Hz for HFF
What is the frequency bandwidth for medium and long-latency
SSEPs? -
correct answer ✅LFF lower than 5 and 1 Hz
True or False: Amplification is optimally increased to reject
approximately 10-15% of the total samples. -
correct answer ✅True
When are far field potentials (FFP) recorded/utilized in SSEPs? -
correct answer ✅When the distance between the two electrodes
is sufficiently great such that an amplitude difference exists.
Exam Questions & Answers (Grade
A+)
SSEP is defined as ____ -
correct answer ✅Somatosensory Evoked Potential
What nerve is stimulated for upper extremity SSEP? -
correct answer ✅median or ulnar nerve
What nerve is stimulated for lower extremity SSEP? -
correct answer ✅tibial or peroneal nerve
SSEP evaluates _______ -
correct answer ✅The nerve pathway from the peripheral nerve
through the spine to the somatosensory area of the brain
The most commonly used stimulating electrode is a ____________
-
correct answer ✅a. bar electrode
By the age of _____ SSEP waveforms should be similar to adults -
correct answer ✅5
,Upper and Lower Extremity SSEP
Exam Questions & Answers (Grade
A+)
This happens when patients have a lost of vibration and position
sensation and normal pain and temperature sensation -
correct answer ✅Friedreich's ataxia-
Three types of sensory fibers? -
correct answer ✅1. pain and temp
2. touch and pressure
3. vibration and position
The cathode electrode is (negative/positive)? -
correct answer ✅Negative pole
The anode electrode is (negative/positive)? -
correct answer ✅Positive pole
Stimulus electrodes should be placed where the muscle twitch is
elicited with the (smallest/highest) stimulus intensity? -
correct answer ✅Smallest
, Upper and Lower Extremity SSEP
Exam Questions & Answers (Grade
A+)
What is the stimulus rate for recording SSEP within 50 ms after the
stimulus? -
correct answer ✅3-4 Hz
What is the frequency bandwidth for short-latency SSEPs? -
correct answer ✅5 to 30 Hz for LFF
1 to 3 k Hz for HFF
What is the frequency bandwidth for medium and long-latency
SSEPs? -
correct answer ✅LFF lower than 5 and 1 Hz
True or False: Amplification is optimally increased to reject
approximately 10-15% of the total samples. -
correct answer ✅True
When are far field potentials (FFP) recorded/utilized in SSEPs? -
correct answer ✅When the distance between the two electrodes
is sufficiently great such that an amplitude difference exists.
