A nurse is collecting data from a newborn who is 4 hours old.
Which of the following findings should the nurse report to the provider?

Choice A rationale

This describes the glabellar reflex (or blink reflex), where tapping the bridge of the nose or forehead causes a newborn to blink. However, in newborns, repeated tapping will cause the newborn to continue to blink for the first few taps and then eventually stop or habituate, they do not keep their eyes closed after being tapped.

Choice B rationale

This describes the stepping reflex, where the newborn attempts to 'walk' when held upright with their feet touching a surface. The response described, where the legs flex at the knees and hips when pressure is applied to the soles, is the positive support reflex, which involves extending the legs to bear weight, or the crossed extension reflex, but not the expected finding of a simple application of pressure.

Choice C rationale

Touching the newborn's cheek is meant to elicit the rooting reflex. The expected finding is that the newborn will turn their head toward the stimulus and open their mouth, searching for the breast or bottle. Turning the head away from the stimulus indicates an absent or abnormal rooting reflex.

Choice D rationale

This describes the palmar grasp reflex. When the nurse's finger or an object is placed in the newborn's palm, the newborn's fingers will involuntarily flex and tightly curl around the object. This is an expected and primitive reflex in a term newborn and should be bilaterally symmetrical.

Choice A rationale

The American Academy of Pediatrics recommends that term newborns should be fed on demand or at least every 3 to 4 hours, which provides sufficient caloric intake for growth and prevents hypoglycemia. Formula is digested more slowly than breast milk, so offering a bottle every 3 to 3 1/2 hours is generally appropriate to meet the infant's nutritional needs and satisfy hunger cues. Regular feeding supports adequate weight gain, which is a critical developmental milestone in the neonatal period.

Choice B rationale

For the first few weeks, the nurse should instruct the guardian to wake a sleepy newborn if more than 4 hours have passed since the last feeding to prevent excessive weight loss and hypoglycemia, as their small glycogen stores are rapidly depleted. However, after the initial period and once the infant is feeding well and gaining weight appropriately (usually about 2 weeks old), night waking is typically not necessary.

Choice C rationale

Diluting ready-to-feed formula by adding filtered water is contraindicated because it reduces the caloric and nutrient density below required levels for the newborn's growth. The proper ratio of formula powder or concentrate to water is crucial for providing essential electrolytes, protein, and carbohydrates. Dilution can lead to water intoxication or hyponatremia and cause serious neurological complications due to electrolyte imbalance.

Choice D rationale

Prepared infant formula should be used or discarded within 24 hours if stored in the refrigerator, not 72 hours. Bacteria can rapidly proliferate in prepared formula, even under refrigeration, increasing the risk of gastrointestinal infection for the newborn. Formula ready-to-feed containers, once opened, should also be used within 24 to 48 hours or discarded to maintain optimal safety.