Cnim practice exam - Study guides, Class notes & Summaries

Forward movement of one of the lower lumbar vertebra on the vertebra below it, or upon the sacrum - answer--Spondylolisthesis is: 1 Forward movement of one of the lower lumbar vertebrae on the vertebrae below it, or upon the sacrum 2 Ankylosis of the vertebrae 3 Neurofibromatosis 4 Deterioration of the spinal cord gray matter which is replaced by a large cyst Sciatic nerve - answer--The common peroneal nerve arises at the superior angle of the popliteal fossa from the: 1 Superior tibial...

CNIM Practice Exam 1During a median nerve preoperative study, a patient has discomfort at the wrist. Stimulation electrodes are 10 mm gold disk, stimulus intensity is 20 mA, and stimulus duration is 100 μsec. Which of the following would most likely reduce the patient's discomfort while maintaining adequate stimulation? - correct answer Decrease number of repetitions What is not an advantage of epidural recordings? - correct answer Absence of significant artifact The stimulation rate i...

-70mV inside the cell - A typical resting membrane potential of a neuron is: 1 +20 mV inside the cell 2 -20 mV inside the cell 3 +70 mV inside the cell 4 -70 mV inside the cell .1 mA - What is the max allowable chassis leakage current? 1 10 uA 2 20 uA 3 .1 mA 4 10 mA 0.1 to 10 uV - Electrical amplitude of the SSEPs is: 1 0.1 to 10 uV 2 10 to 100 uV 3 100 to 1000 uV 4 1000 to 10,000 uV 0.3-70 Hz, 15 mm/sec, 3uV/mm - Of the following, the most appropriate filter, timebase, and sens...

"train" response - Which of the following most likely reflects sustained traction or compression of a nerve during EMG? 1 "burst" of neural activity 2 Any spontaneous EMG response 3 "train" response 4 Varying EMG activity +0.9 msec - Changing from standard headphones to foam insert transducers connected by plastic tubing will change the latency of wave 1 by about: 1 -0.5 msec 2 +0.5 msec 3 +0.9 msec 4 +2 msec 0.1 to 10 uV - Electrical amplitude of the SSEP is: 1 0.1 to 10 uV ...

_________________ is the single most important step taken to avoid contamination A 100/100 pts Using gloves Using protective eyewear Washing hands Using a transportation barrier - Washing hands A 100 mS epoch is recorded with a 10 mS post-stimulus triggering. Which of the following best describes the resulting sweep? A 110 mS sweep starting 10 mS prior to the stimulus A 90 mS sweep starting 10 mS after the stimulus A 100 mS sweep starting 10 mS prior to the stimulus A 100 mS sweep st...

CNIM PRACTICE EXAM 1

During a median nerve preoperative study, a patient has discomfort at the wrist. Stimulation electrodes are 10 mm gold disk, stimulus intensity is 20 mA, and stimulus duration is 100 μsec. Which of the following would most likely reduce the patient's discomfort while maintaining adequate stimulation? - Decrease number of repetitions What is not an advantage of epidural recordings? - Absence of significant artifact The stimulation rate is determined by the - analysis time Somatosensory e...

CNIM PRACTICE EXAM 1 QUESTIONS AND CORRECT ANSWERS Ventral Nerve Roots Lower motors neurons primarily exit the cord through the: 1 dorsal nerve roots 2 ventral nerve roots 3 dorsal columns 4 dorsal root ganglia Glutamate Which one of the following is an excitatory neurotransmitter? 1 GABA 2 Glutamate 3 Glycine 4 Phenylalanine GABA Which one of the following is an inhibitory neurotransmitter? 1 GABA 2 Serotonin 3 Dopamine 4 Phenlalanine the meninges The layers of

ANASTAMOSIS? - -CONNECTION or opening BETWEEN two things (especially cavities or passages) that are normally diverging or branching, such as between blood vessels. -COMMUNICATION BETWEEN ARTERIES What causes the most airborne bacteria in OR? a. blood on gown b. blood spill c. skin shed d. patient vent - c. skin shed Nerve that innervates 4th and 5th fingers? - Ulnar Nerve Problem with Bilateral Synchronus Stim? - Can mask unilateral problems No N20 at baseline could mean? - Stroke Wh...

Your initial signal amplitude is 0.5 μV inside a background noise of 2 μV, what will the signal to noise ratio be after 400 averages? - 5 You would expect a loss of BAEPs in which surgery? - Pontine glioma You want your vertical resolution to: - Match the amplitude of your input to maximize the signal You want to have matching impedances so that: - You can maximize your common mode rejection You record a spinal potential to: - Establish an AP Why is platinum used in epidural recordings -...