Home Sleep Apnea Test Interpretation Report (HSAT)

Patient Name: [Patient full name]   MRN: [Medical record number]   DOB: [Date of birth]   Age: [Age]   Sex: [Sex]

Height/Weight/BMI: [Height / Weight / BMI, or "Not documented"]

Study Date: [Study acquisition date]   Interpretation Date: [Date of report finalization]

Device: [Manufacturer / Model; HSAT Type: Type II / Type III / Type IV]

Ordering Clinician: [Name, credentials]   Interpreting Clinician: [Name, credentials, board certification status in Sleep Medicine]

Clinical Indication

• [Primary reason for HSAT] (e.g., suspected OSA, therapy reassessment, symptom evaluation; if not provided, state: "Indication not provided; interpretation limited to physiologic findings.")
• [Symptoms prompting evaluation] (Include source attribution: referral note, intake form, or patient report; e.g., snoring, witnessed apneas, excessive daytime sleepiness, morning headaches, nocturia)
• [Relevant comorbidities affecting interpretation or HSAT validity] (e.g., hypertension, heart failure, COPD, neuromuscular disease, chronic opioid use)
• [Prior sleep testing or treatment] (e.g., prior PSG/HSAT results, PAP or oral appliance use with dates if available)
• [Medications or exposures influencing results] (e.g., sedatives, alcohol near bedtime, opioids)

(Include only items that are documented; omit bullets for undocumented categories.)

Study Methodology

• Channels recorded: [List channels: airflow via nasal pressure, respiratory effort belts (thoracic/abdominal), oximetry, pulse rate, body position, snoring; state "Not recorded" for channels not present]
• Recording window: Start [date/time] to Stop [date/time]; Patient-reported sleep window: [Times if available, otherwise "Not documented"]
• Scoring rules: Apnea: ≥90% airflow reduction for ≥10 seconds. Hypopnea: ≥30% airflow reduction for ≥10 seconds with [≥3% / ≥4%] oxygen desaturation. (HSAT cannot score arousal-based hypopneas.)
• Index denominator: [REI (events/hour of recording time) / AHI (events/hour of estimated sleep time)] (If AHI, specify sleep estimation method.)
• Scoring approach: [Manual / Auto-scored with manual editing / Auto-only]

Technical Adequacy & Data Quality

Study Adequacy: [Yes / No / Partial]   Threshold applied: [≥4 hours valid airflow and oximetry]

• Total recording time: [hh:mm]
• Valid airflow time: [hh:mm]
• Valid oximetry time: [hh:mm]
• Position-valid time: [hh:mm / Not recorded]
• Artifacts/signal loss: [Describe significant artifacts with duration; if none: "No major signal artifacts; data adequate throughout."]

Limitations: HSAT does not measure sleep stages and cannot distinguish wake from sleep; REI may underestimate severity when recording time exceeds actual sleep time; HSAT cannot evaluate non-respiratory sleep disorders or arousal-based events. [If effort signals absent: "Central vs obstructive differentiation is limited."]

Results

Recording Times
Total recording time	[hh:mm]
Valid airflow time	[hh:mm]
Valid oximetry time	[hh:mm]
Position-valid time	[hh:mm / Not recorded]
Estimated sleep time	[hh:mm / Not recorded]

Respiratory Event Indices
Index reported	[REI / AHI] (events/hour)
Overall index and severity	[Value]; [Normal (<5) / Mild (5–14) / Moderate (15–29) / Severe (≥30)]
Supine index	[Value / Not recorded] events/hour
Non-supine index	[Value / Not recorded] events/hour
Apnea index	[Value / Not recorded] events/hour
Hypopnea index	[Value / Not recorded] events/hour
Event type breakdown	Obstructive: [value] / Central: [value] / Mixed: [value] [or "Not reliably differentiated"]

Oxygenation
Mean SpO₂	[% / Not recorded]
SpO₂ nadir	[% / Not recorded]
Time with SpO₂ ≤88%	[minutes] ([%] of valid oximetry time) [or "Not recorded"]
Oxygen Desaturation Index	[ODI3 / ODI4]: [value] events/hour [or "Not recorded"]
Supplemental oxygen during study	[Yes / No / Not documented]

Heart Rate
Mean pulse rate	[bpm / Not recorded]
Minimum pulse rate	[bpm / Not recorded]
Maximum pulse rate	[bpm / Not recorded]
Device-flagged arrhythmias	[Description / None / Not recorded] (screening finding only)

Interpretation

Diagnostic impression: [Obstructive sleep apnea present / absent / inconclusive], [severity if present]. [Positional dependence noted / not demonstrated / insufficient data]. [Central apneas or periodic breathing comment if signals permit, otherwise "Central vs obstructive differentiation limited"]. [Sleep-related hypoxemia present/absent with key metrics]. [Primary snoring without OSA criteria met, if applicable].

Clinical correlation: [Relate findings to indication and documented symptoms; if symptom data not provided, state this.]

Interpretation confidence: [If technically limited, state: "Findings may support ruling in OSA but cannot reliably rule out OSA due to (limiting factors)."]

Recommendations

(Select the appropriate pathway based on findings and clinical context.)

1. If treating based on HSAT: Initiate PAP therapy via [home APAP / in-lab titration PSG]. Follow-up within [2–4 weeks] for adherence and symptom review. Consider adjuncts: [oral appliance referral / positional therapy / weight management / avoidance of alcohol/sedatives near bedtime]. [If excessive sleepiness: Counsel on drowsy driving and occupational safety.]
2. If proceeding to PSG: In-lab polysomnography indicated due to [negative/inconclusive HSAT with high clinical suspicion / technically inadequate study / significant cardiopulmonary disease / neuromuscular weakness / suspected hypoventilation / chronic opioid use / concern for non-OSA sleep disorder].
3. If repeating HSAT: Repeat study with [improved sensor coaching / in-person hookup / alternate device] within [1–2 weeks]. (If repeat HSAT again negative or inconclusive with persistent suspicion, proceed to PSG.)

Attestation

Attestation: Raw HSAT data were reviewed by the interpreting clinician. Hypopnea scoring rule and index denominator are documented above.

Signature: [Interpreting clinician name, credentials]   [Date/time]