Final answer:
Small dark tufts of fine hair on a neonate's back are likely lanugo, a normal finding that should be documented as normal and does not require immediate medical attention or intervention.
Step-by-step explanation:
The observation of small dark tufts of fine hair on a neonate's lower back is likely indicative of lanugo, which is a fine, colorless hair that covers a fetus' face and body until it is shed close to the time of birth. In some newborns, lanugo may persist for a short while post-birth before it is naturally shed. Therefore, the best action the licensed practical nurse (LPN) should take upon noticing lanugo is to document the finding as normal for a newborn (option a). There is typically no need for concern, immediate notification of the healthcare provider, application of topical medication, or shaving the hair, as lanugo is considered a normal variation in neonates and is expected to resolve on its own without intervention.