What is an indicator of sleep-disordered breathing during a sleep study?

Frequent awakenings and snoring serve as significant indicators of sleep-disordered breathing during a sleep study. Sleep-disordered breathing, which includes conditions like obstructive sleep apnea, is often marked by the physical obstruction of the airway. This obstruction can lead to repeated pauses in breathing, resulting in fragmented sleep. Patients may exhibit frequent awakenings due to these breathing interruptions, and snoring, a common symptom, may indicate the presence of airway resistance. The overlap of these two symptoms often points to underlying issues related to airflow during sleep.

The other options do not align with the indicators of sleep-disordered breathing. Increased dreaming, while an interesting phenomenon, does not specifically correlate with sleep-disordered breathing. Low REM sleep percentages can occur for various reasons but are not definitive markers for sleep-disordered breathing. Lastly, deep sleep with no interruptions generally indicates healthy sleep patterns and is not associated with sleep-disordered breathing, which typically involves disruptions. Thus, the presence of both frequent awakenings and snoring is a reliable indicator of potential sleep-disordered breathing.