CNIM Practice Test with answers
The vertical resolution of an evoked potential system depends primarily on:
A) The analysis period
B) The sampling rate
C) The filter settings
D) The number of bits in the A/D converter - ANSWER: ✔✔D) The number of bits in the A/D converter
Which time constant would be most effective for cutting out low frequency noise from your signal?
A) 10ms
B) 100ms
C) 1s
D) 10s - ANSWER: ✔✔A) 10ms
How frequently should the evoked potential machines be calibrated and safety tested?
A) Only when there is a problem
B) Every 6 months
C) Once a year
D) Once every two years - ANSWER: ✔✔B) Every 6 months
the facial nerve is at risk in all of the following surgeries except:
A) Vestibular neurectomy
B) Resection of parotid tumors
C) Resection of vestibular schwannomas
D) Resection of thyroid tumors - ANSWER: ✔✔D) Resection of thyroid tumors
The P31 response to posterior tibial nerve stimulation:
, A) Reflects post-synaptic activity in the cervical spinal cord
B) Is generated by the thalamus
C) Is recordable over a generalized region of the scalp
D) Is best recorded by an electrode placed at Cs5 - ANSWER: ✔✔C) Is recordable over a generalized
region of the scalp
If you cannot replace an electrode that has come out during surgery you:
A) Ask the surgeon to stop and replace it
B) Ignore the missing recording channel and continue to monitor
C) Use a duplicate
D) Discontinue monitoring - ANSWER: ✔✔C) Use a duplicate
Which of the following peaks will be most affected by Desflurane?
A) P37
B) P100
C)N20
D) Wave V - ANSWER: ✔✔B) P100
Which of the following is most likely associated with abnormal posterior tibial SSEPs?
A) Romberg sign
B) Anterior cord syndrome
C) Meniere's disease
D) Homonymous hemianopsia - ANSWER: ✔✔A) Romberg sign
The resting membrane potential of a neuron is primarily maintained by:
A) Passive diffusion of charged ions
B) The sodium/potassium pump
C) Action potentials
D) the opening of sodium channels - ANSWER: ✔✔B) The sodium/potassium pump
The vertical resolution of an evoked potential system depends primarily on:
A) The analysis period
B) The sampling rate
C) The filter settings
D) The number of bits in the A/D converter - ANSWER: ✔✔D) The number of bits in the A/D converter
Which time constant would be most effective for cutting out low frequency noise from your signal?
A) 10ms
B) 100ms
C) 1s
D) 10s - ANSWER: ✔✔A) 10ms
How frequently should the evoked potential machines be calibrated and safety tested?
A) Only when there is a problem
B) Every 6 months
C) Once a year
D) Once every two years - ANSWER: ✔✔B) Every 6 months
the facial nerve is at risk in all of the following surgeries except:
A) Vestibular neurectomy
B) Resection of parotid tumors
C) Resection of vestibular schwannomas
D) Resection of thyroid tumors - ANSWER: ✔✔D) Resection of thyroid tumors
The P31 response to posterior tibial nerve stimulation:
, A) Reflects post-synaptic activity in the cervical spinal cord
B) Is generated by the thalamus
C) Is recordable over a generalized region of the scalp
D) Is best recorded by an electrode placed at Cs5 - ANSWER: ✔✔C) Is recordable over a generalized
region of the scalp
If you cannot replace an electrode that has come out during surgery you:
A) Ask the surgeon to stop and replace it
B) Ignore the missing recording channel and continue to monitor
C) Use a duplicate
D) Discontinue monitoring - ANSWER: ✔✔C) Use a duplicate
Which of the following peaks will be most affected by Desflurane?
A) P37
B) P100
C)N20
D) Wave V - ANSWER: ✔✔B) P100
Which of the following is most likely associated with abnormal posterior tibial SSEPs?
A) Romberg sign
B) Anterior cord syndrome
C) Meniere's disease
D) Homonymous hemianopsia - ANSWER: ✔✔A) Romberg sign
The resting membrane potential of a neuron is primarily maintained by:
A) Passive diffusion of charged ions
B) The sodium/potassium pump
C) Action potentials
D) the opening of sodium channels - ANSWER: ✔✔B) The sodium/potassium pump
