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17
NC-stat DPNCheck Device User Manual
Appendix E: TEMPERATURE COMPENSATION
Nerve conduction measurements may be sensitive to the temperature around the nerve, which in
superficially located nerves (e.g., sural), may be different than body temperature. Nerve temperature is
usually approximated by the skin surface temperature overlying the nerve.
The NC-stat DPNCheck device compensates for the effect of temperature on sural nerve conduction
velocity using a linear temperature compensation factor of 1 m/s per
o
C with a reference temperature of
28
o
C. The effect of temperature on sural nerve conduction amplitude is small and therefore
compensation is not applied for this parameter. The temperature is measured by an infrared
thermometer, located at the base of the handle behind the stimulating probes.
If the temperature is below 23
o
C, then the patient is too cold to reliably measure nerve conduction and
the test will stop with
displayed on the LCD screen.
©2021 NeuroMetrix, Inc. All Rights Reserved. PN2203282 Rev N
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