Questions and Answers
Which nerve conduction study finding is most indicative of demyelinating neuropathy?
Conduction block in a number of sites
What is the significant difference in F-wave latency between the arms and legs in the patient described?
Prolonged F-wave latencies in arms, normal in legs
What distinguishes needle electromyography from nerve conduction studies?
Disposable, single-use needle electrodes
What is the characteristic sensory finding in the patient with demyelinating neuropathy?
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What is the most likely reason for reduced reflexes in the arms of the patient with demyelinating neuropathy?
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Which of the following is not a parameter monitored in an ECG?
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What is the primary role of EEG in neuroimaging?
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What does an abnormal Q wave in an ECG indicate?
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In what conditions can EEG be used for diagnosis?
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Which parameter reflects the summation of synchronous postsynaptic potentials in EEG?
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What is the unit used to measure small electrical signals in EEG recordings?
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What is the bandwidth range for ECG signals according to the text?
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Which of the following is NOT mentioned as a typical application of ECG in the text?
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What is the main source of largest measurement error in ECG according to the text?
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Which leads are part of the Einthoven leads in ECG measurement?
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What does the projection of the electric dipole vector represent in ECG readings?
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In which plane are the transverse plane leads V1-V6 located?
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Which part of the heart will act as a pacemaker if both the SA node and AV node are not working?
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What is the main electrical event responsible for producing the T wave in a normal heart cycle?
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Which part of the heart has autorhythmic cells that contract regularly without external stimulation?
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What produces the P wave on an ECG recording?
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What is the rate of the AV node serving as a pacemaker in a healthy heart?
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What does an ECG measure?
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Which type of abnormality may be signaled by any spontaneous activity in the muscle?
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What distinguishes between nerve and muscle disease during electromyography?
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In electromyography, what pattern is indicative of a myopathic condition?
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Which condition is associated with increased early recruitment in motor unit activity?
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What is the significance of reduced motor unit potential amplitude in an EMG study?
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When fibrillation is absent in an EMG study, what type of process is less likely to be implicated?
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