Which neonatal pain scale has limited use in extremely premature neonates?

• A. NPASS
• B. NIPS
• C. PIPP
• D. CRIES

Answer: (B)

Extremely premature neonates often show immature or blunted behavioral cues, so a pain scale that relies heavily on obvious facial expressions and crying tends to be less reliable in this group. The Neonatal Infant Pain Scale emphasizes facial grimace, crying, breathing pattern, limb movements, and state of arousal. When infants are extremely preterm, these cues may not be as developed or consistent, making the tool less sensitive to actual pain.

Other scales were designed with preterm physiology in mind. For example, one approach incorporates gestational age and objective physiologic changes (like heart rate and oxygen saturation) along with facial signs, improving accuracy in very preterm infants. Others combine behavioral cues with physiologic indicators and have broader validation across neonates, including those born very early. Because of this design focus, they tend to be more appropriate for extremely premature babies than a scale that depends mainly on overt behavioral signals.