Reading Sleep Studies

Score PSG and home sleep test recordings systematically and generate a clinically sound interpretation.

Practice this in the app More Sleep medicine tracks

What this track covers

This track covers polysomnography and home sleep apnea test interpretation, from signal and montage recognition through sleep staging, respiratory and cardiac/movement event scoring, and AHI/RDI calculation. It also addresses home sleep testing limitations and when a confirmatory in-lab study is warranted, ending with structured report writing.

What you will practice

Recognize electrode montages and identify common signal artifacts
Stage sleep epochs using standard EEG, EOG, and EMG criteria
Differentiate obstructive, central, and mixed apneas from hypopneas and RERAs
Calculate AHI and RDI from scored events
Decide when a home sleep test result requires confirmatory in-lab PSG

Simulator scenario

A virtual patient with a home sleep test showing an ambiguous AHI, where the clinician must decide whether the result is diagnostic or requires in-lab confirmation.

Board question topics

Sleep stage identification from epoch tracings
Respiratory event classification and scoring rules
AHI versus RDI calculation
Home sleep test limitations and escalation to PSG

Ask the tutor

What distinguishes a hypopnea from a RERA when scoring a PSG epoch?Opens the tutor · answers cite their sources What are the criteria for scoring an obstructive versus central apnea?Opens the tutor · answers cite their sources When is a home sleep apnea test considered inadequate and an in-lab PSG needed?Opens the tutor · answers cite their sources

The tutor only answers from licensed sources (FDA prescribing information, public guidelines and our own material) and says when it has none. Educational use only, never patient-specific advice.

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