New trends in thermometry for the patient in the ICU

Modern engineering and space-age technology introduce innovations in thermometry at a crucial time in critical care history. Today's assessment and care decisions are based, in part, on emerging scientific evidence about thermoregulatory responses. Accurate body temperature measurements and the correct interpretation of their meaning are crucial for competent care. Confusion exists as to which instrument or site is "ideal." Interpretation of temperature correlations, between temperature sites or without consideration of linearity, has little meaning outside the clinical context. This article discusses hemodynamic and thermal conditions influencing regional body temperatures along with instrument accuracy, reliability, linearity, precision, safety, comfort, and need for staff training.