d) A newborn who is 18 hr old and has an axillary temperature of 37.7° C (99.9° F)An axillary temperature greater than 37.5° C (99.5° F) is above the expected reference range for a newborn and can be an indication of sepsis. Therefore, the nurse should report this finding to the provider.Pink-tinged urine is an indication of uric acid crystals and is an expected finding for a newborn during the first week following birth.A newborn should pass the first meconium stool within the first 24 to 48 hr following birth. Failure to pass a meconium stool can indicate a bowel obstruction or congenital disorder. This finding is within the expected reference range.Erythema toxicum is a transient rash that can appear anywhere on a newborn's body during the first 24 to 72 hr following birth and can last up to 3 weeks. This finding requires no treatment.