Final answer:
The nurse should document the finding of a pink papular rash with vesicles on a newborn's skin.
Step-by-step explanation:
The nurse should document the finding of a pink papular rash with vesicles on the thorax, back, and abdomen while assessing the skin of a 24-hour-old baby. This finding may indicate a condition called erythema toxicum neonatorum, which is a common benign rash that appears in newborns within the first few days of life. It is characterized by pink or yellowish spots or bumps with small fluid-filled vesicles in the center.
Applying lotion is not necessary as this rash is self-resolving and does not require treatment. Initiating isolation precautions or notifying the physician is not warranted for this condition, as it is not contagious or indicative of a serious medical concern.