CNIM study plan

Draw and label the major ascending (dorsal column–medial lemniscus, spinothalamic, spinocerebellar) and descending (corticospinal, corticobulbar, reticulospinal) pathways from memory

Trace the somatotopic organization of the dorsal columns, spinothalamic tract, and motor cortex, and state where each decussates

Map the brachial plexus and lumbosacral plexus to the muscles and sensory territories each root supplies

Explain the ionic basis of the resting membrane potential, the action potential, and saltatory conduction in myelinated fibers

Calculate signal-to-noise ratio and explain how averaging reduces noise by the square root of the number of trials

Describe the function of differential amplifiers, common-mode rejection ratio, input impedance, and why high CMRR suppresses 60-Hz artifact

Select and justify low- and high-frequency filter settings for SSEP, MEP, BAEP, and EMG recordings

List acceptable electrode impedance ranges and the corrective actions for high or mismatched impedance

Explain patient electrical safety principles: leakage current limits, isolated amplifiers, and ground-fault pathways

Specify stimulation and recording parameters (montage, pulse duration, repetition rate, filters, averaging) for upper- and lower-extremity SSEPs

Identify the neural generator and expected latency range for N9/N13/N18/N20 and P37/N45 waveforms

Distinguish cortical, subcortical, and peripheral components and describe how each is affected by anesthesia vs. surgical insult

Describe transcranial MEP technique including stimulation montage, pulse train characteristics, and facilitatory maneuvers

Interpret a loss of SSEP amplitude vs. loss of MEP amplitude against accepted alarm criteria and state an appropriate response

Describe BAEP acquisition parameters and identify waves I, III, and V with their generators and interpeak intervals

Explain how BAEP is resistant to anesthesia and what it is used to monitor during cerebellopontine angle and brainstem procedures

Differentiate spontaneous and triggered EMG, and describe neurotonic discharges vs. mechanical injury patterns

Select EMG recording montages for facial nerve, recurrent laryngeal nerve, and pedicle screw stimulation

Recognize normal wakefulness, drowsiness, and burst-suppression EEG patterns and the effect of anesthetics on each

Compare propofol, volatile agents, and dexmedetomidine for their dose-dependent effects on SSEP latency/amplitude, MEP, and EEG

Explain why total intravenous anesthesia is preferred when MEPs are monitored and how neuromuscular blockade is managed

Describe the effect of opioids, ketamine, etomidate, and nitrous oxide on each monitoring modality

Predict the monitoring consequences of hypotension, hypothermia, hyperventilation, and anemia

Construct a plan to communicate with the anesthesia team about a monitoring change attributable to a drug or physiologic variable

Assemble a pre-incision checklist covering electrode placement, baseline acquisition, machine setup, and confirming laterality with the surgical team

Sequence the steps for obtaining reliable baselines and describe how patient positioning (prone, lateral, park-bench) alters montage choices

Diagnose the common artifacts - 60-Hz interference, pulse artifact, sweat, electrode pop, and movement - and specify a fix for each

Differentiate a true monitoring change from a technical one using a systematic troubleshooting algorithm

Describe documentation of baseline values, intraoperative changes, and the timing of interventions during a case

Draft the elements of a complete monitoring report: patient data, montages, baselines, events with timestamps, and a summary impression

Practice a structured verbal alert to the surgeon and anesthesia team that states modality, side, magnitude, and time of change

Apply professional and ethical standards regarding scope of practice, supervision, and patient confidentiality

Identify the correct escalation path and documentation requirements when a monitoring change persists after intervention

Review credentialing and continuing-education expectations relevant to intraoperative neuromonitoring practice

Complete two full-length timed practice examinations and score above 80% on each

Re-teach the five weakest topics from prior weeks using a blank page and no notes

Re-drill instrumentation calculations, modality parameters, and anesthetic effects in a single rapid-review session

Finalize a condensed one-page formula and norm-value sheet to review the morning of the exam