CNIM

CNIM Exam 2 with verified answers

CNIM Practice exam 2 with correct answers

During a scoliosis surgery, you recognize a gradual latency increase of 3.5 msec in the PTN cortical response, the subcortical response appears to be shifted out almost as much. All response amplitudes are unchanged. What is the appropriate action to take? a. Ignore the change, it means nothing. b. Inform the surgeon immediately that changes consistent with spinal cord injury may have occurred. Recommend a wake up test. c. Check the latencies of the PF and MN responses to see if they are also sh...

CNIM Review questions with answers

CNIM exam questions with answers

In BAEP's, cochlear nucleus lesion causes? - ANSWER: Increased III-V, increased I-V Which modality is most useful in monitoring the integrity of the corticospinal tracts during resection of an intramedullary spinal cord tumor? - ANSWER: D-Waves The stimulus used in a brainstem auditory evoked potential study is a click with a peak acoustic power in the range of - ANSWER: 2000 to 4000Hz Which of the following tibial nerve responses is not a near field response? - ANSWER: N31 How ...

CNIM exam with correct answers 2024

Hair cells - ANSWER: Cochlear microphonics are used to monitor what? Increase in delta power and increase in alpha-beta power - ANSWER: What is the effect on EEG from induction using isoflurane? A. Decreased delta followed by increased alpha/beta B. Increase in delta power and increase in alpha-beta power C. Increase in low-voltage fast activity D. Increased power at all frequencies limb length - ANSWER: What determines the latency of SSEPs most? Lowering the impedances of ground...

CNIM Practice Test with 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? - ANSWER: Decrease number of repetitions What is not an advantage of epidural recordings? - ANSWER: Absence of significant artifact The stimulation rate is determined by the - ANSWER: ana...