Impact of Sensor Site Selection

Why Site Selection Matters

Selecting the right sensor site is crucial for:

• Accurate glucose readings
• Comfortable wear
• Sensor longevity
• Consistent performance

Optimal Site Characteristics

Blood Flow

Choose areas with good blood flow for faster, more accurate readings.

Recommended Areas

• Abdomen: High blood flow, easy access
• Upper buttocks: Good for active individuals
• Back of upper arm: Discrete location

Areas to Avoid

Structural Issues

• Scarring: Impaired glucose diffusion
• Tattoos: May interfere with sensor function
• Lipohypertrophy: Reduced accuracy

Activity-Related

• Belt lines or waistbands
• Areas compressed during sleep
• High-friction areas during exercise

Site-Specific Considerations

Abdomen

• Most common site
• Good visibility for insertion
• May be affected by sit-ups or core exercises

Upper Arm

• Discrete
• Good for swimmers
• May require assistance for insertion

Upper Buttocks

• Protected from most activities
• Harder to monitor visually
• Good accuracy in studies

Maximizing Accuracy

• Rotate sites regularly
• Keep a site log
• Note which sites give best results for you
• Consider your lifestyle and activities