A recent letter published in the American Journal of Obstetrics & Gynecology highlights the critical role of rectal temperature measurement in improving the diagnosis of intrapartum infections. While oral temperature measurements are commonly used, they often underestimate core body temperature, potentially delaying the diagnosis of conditions like chorioamnionitis.
The authors emphasize that rectal temperature, considered the gold standard, provides a more accurate reflection of core body heat. In cases where oral temperatures appear normal, rectal measurements frequently reveal significantly higher readings—sometimes by 1 to 2°C—prompting timely intervention with antibiotics and improving maternal and neonatal outcomes.
Given the high stakes in labor and delivery, the recommendation is clear: rectal temperature should be routinely considered in laboring patients, especially when maternal oral temperature exceeds 37.5°C or when there are signs of fetal or maternal tachycardia. This approach could significantly reduce the risks associated with delayed infection diagnosis during childbirth.
