A nurse is assessing a client who is in labor and has received epidural analgesia. Which of the following findings should the nurse recognize and document as an adverse effect of epidural analgesia?

Choice A rationale Polyuria, an abnormally large production of urine, is not a typical adverse effect of epidural analgesia. Epidural analgesia, due to its influence on sympathetic nervous system blockade, can sometimes lead to urinary retention by inhibiting bladder detrusor muscle contraction and relaxing the urethral sphincter. Therefore, polyuria would be an unexpected finding. Choice B rationale A maternal temperature of 37.4° C (99.4° F) is within the normal physiological range for a laboring client. Slight elevations can occur due to the metabolic demands of labor or dehydration, but this temperature does not indicate an adverse effect directly attributable to epidural analgesia. Fever, defined as a temperature above 38° C (100.4° F), can be associated with epidural use due to thermoregulatory changes. Choice C rationale A fetal heart rate of 152/min is within the normal range for a term fetus, typically 110-160 beats per minute. This finding indicates a healthy fetal response and does not suggest an adverse effect of epidural analgesia. Epidural analgesia itself usually does not directly alter the fetal heart rate in a negative way if maternal hemodynamics remain stable. Choice D rationale Hypotension is a common adverse effect of epidural analgesia. It occurs due to sympathetic blockade, which causes vasodilation and peripheral pooling of blood, leading to decreased venous return to the heart and a subsequent drop in cardiac output and blood pressure. This reduction in blood pressure can compromise uteroplacental perfusion.