What is an abr - Study guides, Class notes & Summaries

Audiology Exam 3 Questions and Answers What do behavioral tests measure? - Correct Answer ️️ -A patient's subjective perception of sound What do physiological tests measure? - Correct Answer ️️ -The objective measure of the body's response to sound What are examples of behavioral tests? - Correct Answer ️️ -Pure tone testing Speech audiometry Why are physiological tests needed? - Correct Answer ️️ -With behavioral tests, someone might not raise their hand if they're no...

Define ABR Correct Answer - Auditory Brainstem Response - Measures neural response of the auditory pathway. - Synchronous activity of the auditory nerve and brainstem in response to an acoustic stimulus. Generator Sites of the ABR Correct Answer I - Distal CN VIII II - Proximal CN VIII III - Cochlear Nucleus IV - SOC V - Lateral Lemniscus 3 Factors that affect ABR Correct Answer - Noise - ME Disorders - Age/Gender Is ABR a test of hearing? Correct Answer - No, it's a test of th...

Hair cells Cochlear microphonics are used to monitor what? Increase in delta power and increase in alpha-beta power 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 Brainpower Read More limb length What determines the latency of SSEPs most? Lowering the impedances of...

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 - ana...

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...

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 1000 practice questions Fixed 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 an...

CNIM Practice Exam 1 Which of the following is least likely to cause electrical interference in the operating room? - The pneumatic drill If the monitoring instrument develops an inability to average, steps to take would include all the following except:? - Consult with the anesthesiologist anesthesia changes Lying between the adjacent surfaces of the vertebral bodies and bonding them together, are the: ? - Intervertebral discs The dorsal column pathways synapse at which loci on t...

Hair cells Cochlear microphonics are used to monitor what? Increase in delta power and increase in alpha-beta power 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 What determines the latency of SSEPs most? Lowering the impedances of ground and stimulating e...

Functional obsolescence - Answer- Refers to the loss in desirability of the style, layout or function of an element of a property over time Sales comparison - Answer- best indicator of value for existing properties highest and best use - Answer- the legal use for property that gives the greatest return in money and/or amenities external obsolescence - Answer- the loss in value of a property caused by factors outside the property itself principle of contribution - Answer- suggests the...