Question
What should be done if there is an abnormal brainstem auditory evoked potential?
Answer
The differentiation of the left and right I, III, and V waves is still acceptable, with prolonged latency periods for each wave and the I-III, III-V, and I-V interpeak latencies. The threshold for auditory brainstem response is visible to the V wave when the left and right ears are at 25dB. Tip: Abnormal brainstem auditory evoked potentials suggest periodic follow-up.Brainstem auditory evoked potential testing is a method that records electrical signals generated in the head through artificial sound stimulation to determine if there are any abnormalities in the auditory nerve and auditory pathway; it does not involve craniotomy surgery. This is a very routine examination project. The 4th wave is generally not considered in clinical practice because these two waves belong to waves generated during the conduction process, with significant differences in latency, amplitude, and repetitiveness among individuals, so most people do not consider them. If the report ends with the 4th wave, all interwave intervals are chaotic, and there are no normal values to serve as references. Therefore, this result is difficult to judge.