- The room should be well ventilated. There shouldn’t be anyone in the room except the patient and the researcher. During GDV-diagnostics the patient should be relaxed and shouldn’t speak.
- Before GDV-diagnostics damp hands should be dried with a dry cloth. Long nails should be cut short.
- All metal objects (such as rings, bracelets, watch) should be removed from the patient’s hands.
- A finger is positioned in the center of GDV-device so that the image shouldn’t move beyond the window frame (angle of slope is 10 – 30), and the finger should be perpendicular to the GDV-device front wall.
Requirements to the computer for GDV-diagnostics
RAM 2 Gb;
2 Gb free space on the hard disk;
Display with resolution not less than 1024 x 768;
2 USB-port;
OS Windows 7/8/10/11.




