CNIM Questions with All Correct Answers
In a differential amplifier if in input received a voltage of 65 uV and input two voltages of -30 uV, the output voltage seen would be ___ uV and the pens would move ___. - Answer- 95 uV, downward
Which of the following is attenuated by time constant o...
CNIM Questions with All
Correct Answers
In a differential amplifier if in input received a voltage of 65 uV and input two voltages of
-30 uV, the output voltage seen would be ___ uV and the pens would move ___. -
Answer- 95 uV, downward
Which of the following is attenuated by time constant of 0.03 seconds? - Answer- 3 Hz
The accepted limit allowed for leakage current from chassis of an EP machine is... -
Answer- 100 uA
A signal averages should have horizontal resolution of... - Answer- 10 us
It is acceptable to use published normative data from another center for the analysis of
EPs when... - Answer- Stimulus, recording, and other conditions are compatible
The other centers normative values are closely matched to your select (at least 20)
normal subjects.
Which filter bandwidths will affect the latency and/or amplitude of the BAEP? - Answer-
100-1k
What affect does increasing stimulus rate have on BAEP? - Answer- Latencies are
prolonged
Amplitudes of waves I, II, and III are attenuated.
Amplitude of wave V is attenuated
Stimulus intensity should be adjusted to... - Answer- Produce a minimal movement at
the joint involved.
The optimal filter bandpass settings for recording PREPs is... - Answer- 100-3000 Hz
The optimal filter settings for recording a SSEP of the upper extremity is... - Answer- 20
- 3000 Hz
, The use of extension cords is discouraged because... - Answer- Increased leakage
current
The ground may not be intact
Arteriovenous malformations are caused by... - Answer- Abnormal direct connections
between arteries and veins
Brachial plexopathy is most likely to occur in the... - Answer- Ulnar Nerve
Arthrodesis is... - Answer- Joint fusion
Wallerian degeneration can be caused by... - Answer- Lack of blood supply
What neural structure is at risk during Acetabular Fixation? - Answer- Sciatic Nerve
What is the minimum acceptable sweep for BAERs? - Answer- 10 ms
The optimal repetition rate for intraoperative BAEPs is... - Answer- 31 Hz
The peak equivalent SPL of a click should be calibrated at... - Answer- 1000 Hz
Which potential will reverse with click polarity? - Answer- Cochlear microphonic
The most diagnostic part of the BAER is... - Answer- I-V interpeak
What would most likely result in an increased I-III interval? - Answer- Vestibular
Schwannoma
The sound stimulus intensity at the tympanic membrane depends on the... - Answer-
Acoustic coupling between the sound stimulus generator and the ear.
To optimally monitor CN VIII function in the OR, it is desirable to be able to
simultaneously perform... - Answer- BAEPs and Electrocochleograms (ECochG)
The term "broadband click" refers to a... - Answer- Peak acoustic power of 2-4 kHz
You are most likely to see changes during exposure of a spine surgery due to... -
Answer- Anesthesia-induced hypotension
In posterior fossa surgery, an increase in the III-V interpeak interval would be most likely
be due to... - Answer- Traction on the cerebellum
Loss of BAEPs following drilling of the internal auditory canal is most likely due to... -
Answer- Disruption of the cochlear blood supply
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
