CNIM PRACTICE STUDY QUESTIONS AND ANSWERS

CNIM PRACTICE STUDY QUESTIONS AND ANSWERS What is the maximum allowable chassis leakage current? a) 10 mA b) 20 mA c) 0.1 mA d) 10 mA - CORRECT ANSWER-C What is the maximum allowable leakage current from the isolated amplifier inputs through the patient leads? a) 10 uA b) 100 uA c) 1 mA d) 10 mA - CORRECT ANSWER-A What is the machine that measures current leakage? a) Ammeter b) Ohmmeter c) Voltmeter d) Photometer - CORRECT ANSWER-A What is the color code for ground in an AC Power line? a) Red b) Green c) Black d) White - CORRECT ANSWER-B Having poor ground resistance represents a safety problem b/c: a) No, it really is not a safety issue b) Any current leaking to the chassis may find a path to ground through your body c) The machine might not function properly d) It may affect other electrical equipment that have connections to Earth ground - CORRECT ANSWER-B How frequently should the evoked potential machines be calibrated and safety tested? a) Only when there is a problem b) Every 6 months c) Once a year d) Once every two years - CORRECT ANSWER-B Evoked potential systems must be calibrated a MINIMUM of once every: a) Six months b) One year c) Two years d) Periodically as needed - CORRECT ANSWER-A What is the most critical thing to document? a) Patient hematocrit b) Blood pressure c) Important surgical events d) Urine output - CORRECT ANSWER-C Well-maintained documentation is imperative throughout a surgical case in order to: a) Provide details of events associated w/ a functional loss b) Require the technologist to focus on the operative procedure c) Justify billing for the monitoring service d) All of the above - CORRECT ANSWER-A An agent that should be avoided immediately before EMG for facial nerve monitoring is: a) N20 b) Vecuronium c) Phenytoin d) Isoflurane - CORRECT ANSWER-B Which of the following drugs has an appreciable effect on peripheral nerve APs? a) Sufentanil b) Vecuronium c) Desflurane d) None of the above - CORRECT ANSWER-D For spontaneous EMG monitoring, which is the most appropriate drug to use at induction? a) Curare b) Paculon c) Succinyl-choline d) Norcuron - CORRECT ANSWER-C Which of the following has the most detrimental effect on SEP monitoring: a) Ketamine b) N20 + Desflurane c) Pancuronium d) Propofol - CORRECT ANSWER-B When monitoring the facial nerve: a) Long-lasting muscle relaxants must be avoided b) Bipolar electrodes should be placed in the larynx c) Needle electrodes should be placed in the master d) Inhalational anesthetics must be avoided - CORRECT ANSWER-A Intraoperative baseline recordings in somatosensory evoked potentials are best acquired: