Proper Graphing Technique
The patient should be in a neutral and natural position. A posture constant chair facilitates this, but using the left arm and hand to support the head is equally effective.
In performing a full spine reading, the dual probed thermal instrument should be placed at the level of S2. In finding S2, palpate for the iliac crest, which gives the approximate level of L4. Then palpate down the spinous processes to the level of S2. Using your Chiropractic index finger to mark the S2 spinous, place the dual probed instrument at the level of S2 and begin an upward glide (if thermocouples are used, the glide should begin below the starting point to ‘condition’ the couples), keeping the spinous processes between the two probes. Stop the reading at the vertebral prominence (VP).
The cervical reading should be performed from VP to occiput. Again, using the Chiropractic index finger, locate the spinous process of VP. Place the dual probed instrument at the level of VP (If thermocouples are used, the glide should begin below the starting point to ‘condition’ the couples) and begin an upward glide of the instrument. The instrument should be level for the majority of patients during the upward glide. At the upper cervical area, the added tissue requires a compression of the tissue and as the instrument comes in contact with the occiput, a roll-in for three seconds begins to capture the uppermost nerves. Stop the reading at this point and review or record the thermal graph reading.