Overview
This protocol outlines standard procedures for conducting polysomnography (PSG) and other sleep studies in clinical settings.
Pre-Study Procedures
Patient Preparation
- Verify patient eligibility and prescreening documentation
- Confirm medication status and recent caffeine intake
- Review sleep diary (minimum 2 weeks of data)
Technical Setup
- Calibrate all monitoring equipment
- Verify electrode impedances (<5kΩ)
- Test recording systems
Standard Monitoring Parameters
Required Measurements
- EEG (minimum leads: F4-M1, C4-M1, O2-M1)
- EOG (right and left)
- Chin EMG
- ECG
- Airflow (nasal and oral)
- Respiratory effort (thoracic and abdominal)
- Oxygen saturation
- Body position
- Leg EMG
Recording Protocol
Montage Application
- Clean and prepare skin surfaces
- Apply electrodes following 10-20 system
- Perform bio-calibrations
Study Duration
- Minimum 6 hours of recording
- Lights out between 21:00-23:00
- Morning awakening between 06:00-08:00
Data Analysis
Scoring Parameters
- Score in 30-second epochs
- Follow AASM scoring guidelines
- Document artifacts and technical issues
Required Measurements
- Total Sleep Time (TST)
- Sleep Efficiency
- Sleep Latency
- REM Latency
- Arousal Index
Quality Assurance
Technical Review
- Signal quality assessment
- Artifact identification
- Data validation
Clinical Review
- Scoring verification
- Clinical correlation
- Final report generation
Emergency Procedures
Medical Emergencies
- Emergency contact protocols
- Equipment for basic life support
- Emergency response documentation
Documentation Requirements
Essential Forms
- Patient consent
- Technical worksheet
- Sleep questionnaires
- Final report template