- The device applies the Alternate Site Testing (AST) for sampling blood at fingers, arms, palms, etc

- Twist off the adjustable cap and clean the device especially the lancet carrier with an alcohol pad

- Place a blood lancet on the carrier and twist off the lancet's cap

- Tighten the cap of lancing device back

- Adjust the cap to an appropriate penetration depth (5 means the greatest depth)

- Hold th cap with one hnd and pull the handle back with another unti a spring-clutch sound

- Pinpoint the sampling location and press the button

- The device is reusable, but the blood lancet needs discarding after each use