What is the combined frequency and sensitivity range for Legs and Snore channels?

The combined frequency and sensitivity range for the Legs and Snore channels is indicative of how these specific channels are used in polysomnography, particularly regarding their ability to detect and accurately display relevant physiological signals during sleep studies.

The correct choice reflects the standard frequency range typically used for these channels, which is between 10 Hz and 100 Hz. This range is suitable for capturing the essential signals, including electromyographic (EMG) activity from the legs (to detect movements) and the sound of snoring (which can be related to airway obstruction). The sensitivity of 7 microvolts per mm means the signals are appropriately amplified for accurate interpretation.

In contrast, the other options present frequency ranges and sensitivities that do not align with the expected specifications for both Legs and Snore channels. This inconsistency in frequency or sensitivity could result in inadequate detection of the relevant physiological phenomena, therefore making them unsuitable choices in this context.