Cnim Practice Questions. |591 Questions| With Correct Answers.

With significant changes in cervical and cortical SSEPs during intraoperative monitoring, adequate stimulation of the median nerve is indicated by: a. consistent anesthetic levels b. no change in the peripheral responses c. a persistent thumb twitch d. a loss of peripheral response {Ans: b. no change in the peripheral responses}Following the final application of connective forces to the spinal column, the spinal cord should typically be monitored for at least: a) 5 minutes b) 10 minutes c) 20 minutes d) 30 minutes {Ans: d) 30 minutes}Because generator sites are typically deep within anatomic structures, most EPs are considered to be: a) far-field responses b) multiwave complexes c) transient waveforms d) steady state potentials {Ans: a) far-field responses}Mixing electrodes made of various electrode metals is discouraged because: a. creates a lower averaged current density b. it creates a lower averages current density c. introduces artifact because it introduces a "difference" in the inputs that can be amplified by the differential amplifier {Ans: c. introduces artifact because it introduces a "difference" in the inputs that can be amplified by the differential amplifier}With a sampling rate of 10 kHz the shortest sine wave resolved would be: a. 2 msec