CNIM PRACTICE EXAM 1 QUESTIONS WITH CORRECT ANSWERS|100% verified|14 pages

CNIM PRACTICE EXAM 1 QUESTIONS WITH CORRECT ANSWERS 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? CORRECT ANSWER Decrease number of repetitions What is not an advantage of epidural recordings? CORRECT ANSWER Absence of significant artifact The stimulation rate is determined by the CORRECT ANSWER analysis time Somatosensory evoked potentials are less reliable in patients with ? CORRECT ANSWER Neuromuscular disease When placing PTN stimulator you should not CORRECT ANSWER Secure the tape and bands around the whole ankle A differential amplifier with a Gain of 1,000,000 has a 0.2 μV signal at its positive input and a 0.8 μV signal at its negative input. The output will be: CORRECT ANSWER A downward peak of 0.6V The lumbar potential is generated from CORRECT ANSWER Post-synaptic responses The P31 response to posterior tibial nerve stimulation CORRECT ANSWER Is recordable over a generalized region of scalp Which of the following has the greatest effect on SEP monitoring? CORRECT ANSWER Sevoflurane A shocking sensation that occurs throughout the body during neck flexion is called CORRECT ANSWER L'Hermittes sign Lowering the SSEP hicut filter from 500 Hz to 200 Hz may cause the cortical peaks to: CORRECT ANSWER Appear longer in latency How many waves of a 60 Hz signal should you see in a 250 mS sweep? CORRECT ANSWER 15 Activation of an action potential of a neuron will depend on: CORRECT ANSWER Its membrane potential based on the spatiotemporal summation of its excitatory and inhibitory inputs