This research investigated effectiveness of temporal artery thermometry (TAT) to detect high rectal fever in children ≥ 91 days and ≤ 4 years old. Rectal temperature was initially evaluated immediately followed by TAT. As expected, the difference between mean rectal (38.05 ± .99 °C) and mean TA (37.55 ± .8 °C) temperatures in subjects (N = 239) was significant (p < .0001). Linear regression revealed TAT underestimated rectal thermometry with greater frequency at higher temperatures. This observation provides probable explanation for the disparity between these thermometry methods. A TAT sensitivity of 75% and specificity of 85% were determined for detecting high fever (39 °C)-a finding clinically unacceptable. In contrast, among the small number of injured subjects enrolled, TAT detected high rectal fever with 100% sensitivity and specificity. This finding, if confirmed, suggests TAT screening for well and injured children has potential for clinical practice by diminishing rectal measurements and their associated risks in the acute care and/or ambulatory practice setting.
Keywords: Emergency Department; fever; pediatric patients; rectal thermometry; temporal artery thermometry.
© The Author(s) 2014.