CNIM PRACTICE QUESTIONS TEST BANK Exam WITH 600 QUESTIONS AND ANSWERS
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Course
CNIM
Institution
CNIM
CNIM PRACTICE QUESTIONS TEST BANK
Exam WITH 600 QUESTIONS AND
ANSWERS
Impedance is defined as:
a) The flow of alternating current
b) Opposition to the flow of direct current
c) Opposition to the flow of alternating current
d) Opposition to the change in flow of current - ANSWER-c) Opposit...
a) The flow of alternating current
b) Opposition to the flow of direct current
c) Opposition to the flow of alternating current
d) Opposition to the change in flow of current - ANSWER-c) Opposition to
the flow of alternating current
The basic unit for measuring current flow is:
a) Coulomb
b) Ampere
c) Density
d) Vold - ANSWER-b) Ampere
Electrodes of dissimilar metals should not be used togehter because:
a) Electrolyte only works with certain electrodes
b) The amplifiers will only accept input form one type of electrode
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c) Dissimilar electrodes have no resistance
d) The materials in different electrodes have different conductive properties
- ANSWER-d) The materials in different electrodes have different
conductive properties
The basic unit of resistance is the:
a) Ohm
b) Coulomb
c) Ampere
d) Volt - ANSWER-a) Ohm
Which of the following is most attenuated by a low frequency filter of 1 Hz?
a) 5.0 Hz
b) 0.8 Hz
c) 10.0 Hz
d) 1.5 Hz - ANSWER-b) 0.8 Hz
The homonculus is a:
a) Representation of the motor and sensory cortices of the brain
b) Gyrus found in the temporal lobe
c) A lateral loss of vision in one eye
d) Type of tumor - ANSWER-a) Representation of the motor and sensory
cortices of the brain
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Thrombosis of the right middle cerebral artery would most likely cause:
a) Right homonymous hemianopsia
b) Aphasia
c) Left-sided paralysis, primarily of the leg
d) Left-sided paralysis, primarily of the face & arm - ANSWER-d) Left-sided
paralysis, primarily of the face & arm
The maximum allowable chassis leakage current is:
a) 100 uV
b) 10 uA
c) 1000 uA
d) 100 uA - ANSWER-d) 100 uA
A patient can become the pathway of least resistance and therefore
electrically susceptible to shock when:
a) Depth electrodes are used
b) Not all equipment attached to the patient is connected to a common
ground
c) The electrode test is utilized
d) The recording instrument is turned on - ANSWER-b) Not all equipment
attached to the patient is connected to a common ground
The stimulus intensity of SSEPs should not be set above:
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a) 20 mA
b) 40 mA
c) 60 mA
d) 80 mA - ANSWER-b) 40 mA
According to ACNS guidelines, a grounding device must be available so
that under_______ is measured across an impedance of 1000 Ohms:
a) 50 uV rms at 60 Hz
b) 60 mV rms at 50 Hz
c) 20 uV rms at 60 Hz
d) 20 mV rms at 60 Hz - ANSWER-d) 20 mV rms at 60 Hz
What is the voltage delivered to a patient if the constant current stimulator
is set at 50 mA and the skin resistance is 40 Ohms?
(E = I x R)
a) 100V
b) 1V
c) 200V
d) 2V - ANSWER-d) 2V
For patients showing clamp related EEG changes during CEA, 80% occur
within the:
a) 10-13 Hz alpha range
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