Summary: (in dB, where 45 dB is background levels and 55dB is quiet snoring). This is a normal tracing with four flat lines throughout with no evidence of snoring, hypoxaemia or recurrent arousals. Figure 6b. A patient with continuous snoring but no evidence of multiple arousals in that the pulse rate is steady and there are very few body movements. In addition there are no dips in
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