THE RATIO SCALE FOR THE INTENSY OF POST ANALGESIA PAIN DURING LABOR

Abstract

The objective of this paper was to measure the intensity of pain with combined raqui-peri post analgesia during the labor through the psychophysical methods, which are category estimations and magnitude estimations, in order to verify the stability and to validate the psychophysical scale of the perception of pain. The methods utilized were magnitude estimations and intermodal pairing. This study was comprised of 39 patients (22 received analgesia and 17 did not receive analgesia). The psychophysical scale of pain intenisity prior to analgesia was validated with the exponent, and after analgesia, the exponent was. Spearman's correlation coefficient (rs) employed to the estimates for each method before and after analgesia was of rs=0,51 and rs=0,96 respectively, indicating the rank order derived from the estimates is highly concordant.